./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 109d156101f4cfba3ce2d0d8043b4202b4256b37 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 109d156101f4cfba3ce2d0d8043b4202b4256b37 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_92 term size 22 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 18:04:57,500 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:04:57,501 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:04:57,509 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:04:57,510 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:04:57,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:04:57,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:04:57,513 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:04:57,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:04:57,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:04:57,516 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:04:57,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:04:57,516 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:04:57,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:04:57,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:04:57,518 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:04:57,519 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:04:57,520 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:04:57,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:04:57,522 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:04:57,523 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:04:57,524 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:04:57,526 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:04:57,526 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:04:57,526 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:04:57,527 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:04:57,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:04:57,528 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:04:57,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:04:57,530 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:04:57,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:04:57,531 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:04:57,531 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:04:57,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:04:57,532 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:04:57,533 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:04:57,533 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-18 18:04:57,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:04:57,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:04:57,541 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:04:57,542 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 18:04:57,542 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 18:04:57,542 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 18:04:57,542 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 18:04:57,542 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 18:04:57,542 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 18:04:57,543 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 18:04:57,543 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 18:04:57,543 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 18:04:57,543 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 18:04:57,544 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 18:04:57,544 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 18:04:57,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:04:57,544 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:04:57,544 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 18:04:57,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:04:57,545 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:04:57,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:04:57,546 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 18:04:57,546 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:04:57,546 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 18:04:57,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:04:57,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:04:57,546 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:04:57,547 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 18:04:57,547 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:04:57,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 18:04:57,547 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_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 109d156101f4cfba3ce2d0d8043b4202b4256b37 [2018-11-18 18:04:57,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:04:57,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:04:57,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:04:57,590 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:04:57,591 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:04:57,591 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:04:57,644 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/74210736d/edce1409da104eadaeb2e5494d23681b/FLAG63734f749 [2018-11-18 18:04:58,034 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:04:58,035 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:04:58,042 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/74210736d/edce1409da104eadaeb2e5494d23681b/FLAG63734f749 [2018-11-18 18:04:58,416 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/74210736d/edce1409da104eadaeb2e5494d23681b [2018-11-18 18:04:58,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:04:58,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:04:58,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:04:58,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:04:58,423 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:04:58,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f6f8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58, skipping insertion in model container [2018-11-18 18:04:58,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:04:58,469 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:04:58,684 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:04:58,692 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:04:58,731 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:04:58,811 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:04:58,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58 WrapperNode [2018-11-18 18:04:58,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:04:58,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:04:58,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:04:58,812 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:04:58,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:04:58,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:04:58,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:04:58,838 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:04:58,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... [2018-11-18 18:04:58,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:04:58,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:04:58,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:04:58,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:04:58,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 18:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 18:04:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 18:04:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 18:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:04:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:04:59,347 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:04:59,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:04:59 BoogieIcfgContainer [2018-11-18 18:04:59,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:04:59,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 18:04:59,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 18:04:59,351 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 18:04:59,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:04:58" (1/3) ... [2018-11-18 18:04:59,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bcc76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:04:59, skipping insertion in model container [2018-11-18 18:04:59,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:04:58" (2/3) ... [2018-11-18 18:04:59,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bcc76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:04:59, skipping insertion in model container [2018-11-18 18:04:59,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:04:59" (3/3) ... [2018-11-18 18:04:59,354 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:04:59,360 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 18:04:59,367 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 65 error locations. [2018-11-18 18:04:59,377 INFO L257 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2018-11-18 18:04:59,397 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 18:04:59,397 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 18:04:59,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 18:04:59,397 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 18:04:59,398 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 18:04:59,398 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 18:04:59,398 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 18:04:59,398 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 18:04:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2018-11-18 18:04:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:04:59,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:04:59,421 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:04:59,423 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:04:59,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:04:59,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1976719322, now seen corresponding path program 1 times [2018-11-18 18:04:59,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:04:59,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:04:59,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:04:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:04:59,543 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 18:04:59,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:04:59,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:04:59,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:04:59,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:04:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:04:59,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:04:59,559 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2018-11-18 18:04:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:04:59,745 INFO L93 Difference]: Finished difference Result 186 states and 195 transitions. [2018-11-18 18:04:59,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:04:59,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 18:04:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:04:59,757 INFO L225 Difference]: With dead ends: 186 [2018-11-18 18:04:59,757 INFO L226 Difference]: Without dead ends: 182 [2018-11-18 18:04:59,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:04:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-11-18 18:04:59,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 147. [2018-11-18 18:04:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-18 18:04:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 154 transitions. [2018-11-18 18:04:59,792 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 154 transitions. Word has length 7 [2018-11-18 18:04:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:04:59,792 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 154 transitions. [2018-11-18 18:04:59,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:04:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 154 transitions. [2018-11-18 18:04:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:04:59,793 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:04:59,793 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:04:59,794 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:04:59,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:04:59,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1976719321, now seen corresponding path program 1 times [2018-11-18 18:04:59,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:04:59,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:04:59,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,798 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:04:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:04:59,854 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 18:04:59,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:04:59,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:04:59,855 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:04:59,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:04:59,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:04:59,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:04:59,856 INFO L87 Difference]: Start difference. First operand 147 states and 154 transitions. Second operand 3 states. [2018-11-18 18:04:59,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:04:59,978 INFO L93 Difference]: Finished difference Result 182 states and 191 transitions. [2018-11-18 18:04:59,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:04:59,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 18:04:59,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:04:59,979 INFO L225 Difference]: With dead ends: 182 [2018-11-18 18:04:59,980 INFO L226 Difference]: Without dead ends: 182 [2018-11-18 18:04:59,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:04:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-11-18 18:04:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 143. [2018-11-18 18:04:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-11-18 18:04:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 150 transitions. [2018-11-18 18:04:59,990 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 150 transitions. Word has length 7 [2018-11-18 18:04:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:04:59,990 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 150 transitions. [2018-11-18 18:04:59,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:04:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 150 transitions. [2018-11-18 18:04:59,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 18:04:59,991 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:04:59,991 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:04:59,991 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:04:59,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:04:59,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1084299085, now seen corresponding path program 1 times [2018-11-18 18:04:59,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:04:59,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:04:59,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:04:59,995 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:00,055 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 18:05:00,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:00,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:00,056 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:00,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:00,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:00,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:00,057 INFO L87 Difference]: Start difference. First operand 143 states and 150 transitions. Second operand 6 states. [2018-11-18 18:05:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:00,307 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2018-11-18 18:05:00,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 18:05:00,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-18 18:05:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:00,309 INFO L225 Difference]: With dead ends: 190 [2018-11-18 18:05:00,309 INFO L226 Difference]: Without dead ends: 190 [2018-11-18 18:05:00,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 18:05:00,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-11-18 18:05:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 144. [2018-11-18 18:05:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-18 18:05:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 158 transitions. [2018-11-18 18:05:00,320 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 158 transitions. Word has length 13 [2018-11-18 18:05:00,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:00,321 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 158 transitions. [2018-11-18 18:05:00,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 158 transitions. [2018-11-18 18:05:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 18:05:00,321 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:00,321 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:00,322 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:00,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1084299086, now seen corresponding path program 1 times [2018-11-18 18:05:00,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:00,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:00,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,324 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:00,397 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 18:05:00,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:00,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:00,399 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:00,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:00,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:00,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:00,400 INFO L87 Difference]: Start difference. First operand 144 states and 158 transitions. Second operand 6 states. [2018-11-18 18:05:00,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:00,610 INFO L93 Difference]: Finished difference Result 198 states and 221 transitions. [2018-11-18 18:05:00,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:05:00,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-18 18:05:00,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:00,612 INFO L225 Difference]: With dead ends: 198 [2018-11-18 18:05:00,612 INFO L226 Difference]: Without dead ends: 198 [2018-11-18 18:05:00,612 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 18:05:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-11-18 18:05:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 140. [2018-11-18 18:05:00,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-18 18:05:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2018-11-18 18:05:00,619 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 13 [2018-11-18 18:05:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:00,619 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2018-11-18 18:05:00,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2018-11-18 18:05:00,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:05:00,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:00,620 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:00,621 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:00,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:00,621 INFO L82 PathProgramCache]: Analyzing trace with hash 273154676, now seen corresponding path program 1 times [2018-11-18 18:05:00,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:00,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:00,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,623 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:00,681 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 18:05:00,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:00,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:00,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:00,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:00,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:00,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:00,683 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 6 states. [2018-11-18 18:05:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:00,870 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2018-11-18 18:05:00,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:05:00,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 18:05:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:00,870 INFO L225 Difference]: With dead ends: 185 [2018-11-18 18:05:00,870 INFO L226 Difference]: Without dead ends: 185 [2018-11-18 18:05:00,871 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 18:05:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-18 18:05:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 139. [2018-11-18 18:05:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 18:05:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2018-11-18 18:05:00,875 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 19 [2018-11-18 18:05:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:00,875 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2018-11-18 18:05:00,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2018-11-18 18:05:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:05:00,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:00,876 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:00,876 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:00,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:00,877 INFO L82 PathProgramCache]: Analyzing trace with hash 273154677, now seen corresponding path program 1 times [2018-11-18 18:05:00,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:00,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:00,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:00,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:00,934 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 18:05:00,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:00,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:00,935 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:00,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:00,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:00,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:00,936 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand 6 states. [2018-11-18 18:05:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:01,083 INFO L93 Difference]: Finished difference Result 194 states and 217 transitions. [2018-11-18 18:05:01,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 18:05:01,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 18:05:01,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:01,084 INFO L225 Difference]: With dead ends: 194 [2018-11-18 18:05:01,084 INFO L226 Difference]: Without dead ends: 194 [2018-11-18 18:05:01,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 18:05:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-11-18 18:05:01,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 136. [2018-11-18 18:05:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 18:05:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2018-11-18 18:05:01,089 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 19 [2018-11-18 18:05:01,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:01,089 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2018-11-18 18:05:01,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2018-11-18 18:05:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 18:05:01,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:01,090 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] [2018-11-18 18:05:01,090 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:01,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:01,090 INFO L82 PathProgramCache]: Analyzing trace with hash -415932871, now seen corresponding path program 1 times [2018-11-18 18:05:01,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:01,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:01,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,092 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:01,122 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 18:05:01,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:01,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:01,122 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:01,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:01,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:01,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:01,123 INFO L87 Difference]: Start difference. First operand 136 states and 150 transitions. Second operand 3 states. [2018-11-18 18:05:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:01,183 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2018-11-18 18:05:01,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:01,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-18 18:05:01,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:01,184 INFO L225 Difference]: With dead ends: 144 [2018-11-18 18:05:01,184 INFO L226 Difference]: Without dead ends: 144 [2018-11-18 18:05:01,184 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-18 18:05:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2018-11-18 18:05:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-11-18 18:05:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 145 transitions. [2018-11-18 18:05:01,186 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 145 transitions. Word has length 26 [2018-11-18 18:05:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:01,186 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 145 transitions. [2018-11-18 18:05:01,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 145 transitions. [2018-11-18 18:05:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 18:05:01,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:01,187 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] [2018-11-18 18:05:01,187 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:01,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:01,188 INFO L82 PathProgramCache]: Analyzing trace with hash -415932870, now seen corresponding path program 1 times [2018-11-18 18:05:01,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:01,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:01,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,189 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:01,243 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 18:05:01,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:01,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:01,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:01,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:01,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:01,244 INFO L87 Difference]: Start difference. First operand 131 states and 145 transitions. Second operand 3 states. [2018-11-18 18:05:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:01,296 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2018-11-18 18:05:01,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:01,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-18 18:05:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:01,297 INFO L225 Difference]: With dead ends: 139 [2018-11-18 18:05:01,297 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 18:05:01,298 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 18:05:01,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 126. [2018-11-18 18:05:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 18:05:01,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 140 transitions. [2018-11-18 18:05:01,300 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 140 transitions. Word has length 26 [2018-11-18 18:05:01,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:01,302 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 140 transitions. [2018-11-18 18:05:01,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 140 transitions. [2018-11-18 18:05:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 18:05:01,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:01,303 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] [2018-11-18 18:05:01,303 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:01,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:01,303 INFO L82 PathProgramCache]: Analyzing trace with hash -72988509, now seen corresponding path program 1 times [2018-11-18 18:05:01,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:01,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:01,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,305 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:01,389 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 18:05:01,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:01,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:05:01,389 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:01,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 18:05:01,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 18:05:01,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 18:05:01,390 INFO L87 Difference]: Start difference. First operand 126 states and 140 transitions. Second operand 8 states. [2018-11-18 18:05:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:01,568 INFO L93 Difference]: Finished difference Result 166 states and 175 transitions. [2018-11-18 18:05:01,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 18:05:01,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-11-18 18:05:01,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:01,570 INFO L225 Difference]: With dead ends: 166 [2018-11-18 18:05:01,570 INFO L226 Difference]: Without dead ends: 166 [2018-11-18 18:05:01,570 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-18 18:05:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-11-18 18:05:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 130. [2018-11-18 18:05:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-18 18:05:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 147 transitions. [2018-11-18 18:05:01,574 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 147 transitions. Word has length 29 [2018-11-18 18:05:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:01,574 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 147 transitions. [2018-11-18 18:05:01,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 18:05:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 147 transitions. [2018-11-18 18:05:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 18:05:01,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:01,575 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] [2018-11-18 18:05:01,575 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:01,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:01,576 INFO L82 PathProgramCache]: Analyzing trace with hash -72988508, now seen corresponding path program 1 times [2018-11-18 18:05:01,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:01,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:01,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:01,581 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:01,830 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 18:05:01,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:01,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 18:05:01,831 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:01,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:05:01,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:05:01,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:05:01,832 INFO L87 Difference]: Start difference. First operand 130 states and 147 transitions. Second operand 7 states. [2018-11-18 18:05:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:02,106 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2018-11-18 18:05:02,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 18:05:02,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-18 18:05:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:02,115 INFO L225 Difference]: With dead ends: 212 [2018-11-18 18:05:02,115 INFO L226 Difference]: Without dead ends: 212 [2018-11-18 18:05:02,115 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-18 18:05:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-11-18 18:05:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 172. [2018-11-18 18:05:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 18:05:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 203 transitions. [2018-11-18 18:05:02,119 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 203 transitions. Word has length 29 [2018-11-18 18:05:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:02,120 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 203 transitions. [2018-11-18 18:05:02,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:05:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 203 transitions. [2018-11-18 18:05:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 18:05:02,120 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:02,120 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] [2018-11-18 18:05:02,121 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:02,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:02,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2032324365, now seen corresponding path program 1 times [2018-11-18 18:05:02,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:02,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:02,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:02,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:02,122 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:02,156 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 18:05:02,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:02,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 18:05:02,156 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:02,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 18:05:02,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 18:05:02,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 18:05:02,157 INFO L87 Difference]: Start difference. First operand 172 states and 203 transitions. Second operand 4 states. [2018-11-18 18:05:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:02,273 INFO L93 Difference]: Finished difference Result 207 states and 233 transitions. [2018-11-18 18:05:02,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 18:05:02,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-18 18:05:02,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:02,274 INFO L225 Difference]: With dead ends: 207 [2018-11-18 18:05:02,274 INFO L226 Difference]: Without dead ends: 207 [2018-11-18 18:05:02,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 18:05:02,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-11-18 18:05:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 172. [2018-11-18 18:05:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 18:05:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 202 transitions. [2018-11-18 18:05:02,278 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 202 transitions. Word has length 30 [2018-11-18 18:05:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:02,279 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 202 transitions. [2018-11-18 18:05:02,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 18:05:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 202 transitions. [2018-11-18 18:05:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 18:05:02,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:02,280 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] [2018-11-18 18:05:02,280 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:02,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:02,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1500137784, now seen corresponding path program 1 times [2018-11-18 18:05:02,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:02,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:02,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:02,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:02,286 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:02,685 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 18:05:02,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:02,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-18 18:05:02,686 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:05:02,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 18:05:02,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 18:05:02,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-11-18 18:05:02,686 INFO L87 Difference]: Start difference. First operand 172 states and 202 transitions. Second operand 16 states. [2018-11-18 18:05:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:03,717 INFO L93 Difference]: Finished difference Result 269 states and 304 transitions. [2018-11-18 18:05:03,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 18:05:03,717 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2018-11-18 18:05:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:03,720 INFO L225 Difference]: With dead ends: 269 [2018-11-18 18:05:03,720 INFO L226 Difference]: Without dead ends: 269 [2018-11-18 18:05:03,721 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 18:05:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-11-18 18:05:03,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 183. [2018-11-18 18:05:03,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-11-18 18:05:03,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 214 transitions. [2018-11-18 18:05:03,726 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 214 transitions. Word has length 34 [2018-11-18 18:05:03,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:03,727 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 214 transitions. [2018-11-18 18:05:03,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 18:05:03,727 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 214 transitions. [2018-11-18 18:05:03,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 18:05:03,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:03,728 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 18:05:03,728 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:03,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:03,728 INFO L82 PathProgramCache]: Analyzing trace with hash 619055763, now seen corresponding path program 1 times [2018-11-18 18:05:03,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:03,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:03,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:03,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:03,729 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:05:04,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 18:05:04,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 18:05:04,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-11-18 18:05:04,032 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [9], [12], [13], [16], [19], [20], [23], [26], [27], [30], [33], [34], [37], [40], [43], [47], [49], [52], [196], [200], [206], [207], [208], [210], [211], [217], [221], [261], [266], [270], [276], [277], [280], [282], [284], [291], [292], [293] [2018-11-18 18:05:04,058 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 18:05:04,058 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 18:05:04,225 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 18:05:04,226 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Performed 318 root evaluator evaluations with a maximum evaluation depth of 3. Performed 318 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 37 variables. [2018-11-18 18:05:04,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:04,233 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 18:05:04,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 18:05:04,234 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 18:05:04,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:04,242 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 18:05:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:04,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:04,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:04,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,313 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 18:05:04,337 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 18:05:04,339 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,340 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-11-18 18:05:04,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:04,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:04,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,370 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,374 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,374 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2018-11-18 18:05:04,429 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-18 18:05:04,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:04,435 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-11-18 18:05:04,460 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,461 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 18:05:04,461 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,467 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:29 [2018-11-18 18:05:04,488 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-11-18 18:05:04,496 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:04,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,504 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:38 [2018-11-18 18:05:04,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 74 [2018-11-18 18:05:04,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 75 [2018-11-18 18:05:04,617 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,664 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 62 [2018-11-18 18:05:04,674 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:04,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:05:04,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:05:04,714 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:67, output treesize:99 [2018-11-18 18:05:04,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 75 [2018-11-18 18:05:04,800 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,801 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 71 [2018-11-18 18:05:04,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:04,855 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 81 [2018-11-18 18:05:04,856 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:05:04,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 18:05:04,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,920 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,921 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:04,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 18:05:04,922 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,931 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:04,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-11-18 18:05:04,959 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:151, output treesize:173 [2018-11-18 18:05:07,405 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-11-18 18:05:07,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 69 [2018-11-18 18:05:07,504 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2018-11-18 18:05:07,507 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2018-11-18 18:05:07,541 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2018-11-18 18:05:07,542 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,549 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-18 18:05:07,566 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:144, output treesize:136 [2018-11-18 18:05:07,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 64 [2018-11-18 18:05:07,783 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2018-11-18 18:05:07,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,806 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2018-11-18 18:05:07,807 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,822 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2018-11-18 18:05:07,824 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,838 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2018-11-18 18:05:07,840 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,848 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,855 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:150, output treesize:10 [2018-11-18 18:05:07,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:07,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-18 18:05:07,869 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:07,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:07,873 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-11-18 18:05:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:05:07,927 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 18:05:10,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-11-18 18:05:10,246 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:10,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2018-11-18 18:05:10,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:10,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 18:05:10,271 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:100, output treesize:84 [2018-11-18 18:05:11,095 WARN L180 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-18 18:05:13,769 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,770 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 78 [2018-11-18 18:05:13,771 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,789 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,790 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 77 [2018-11-18 18:05:13,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 54 [2018-11-18 18:05:13,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 18:05:13,813 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,822 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:13,822 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2018-11-18 18:05:13,847 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:13,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 18:05:13,848 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2018-11-18 18:05:13,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 18:05:13,857 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,858 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,861 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,864 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 55 [2018-11-18 18:05:13,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 18:05:13,880 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,887 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:13,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 46 [2018-11-18 18:05:13,903 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,904 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 27 [2018-11-18 18:05:13,904 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-18 18:05:13,920 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,920 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:13,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-18 18:05:13,921 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,931 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,933 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,936 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:13,943 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 12 variables, input treesize:174, output treesize:4 [2018-11-18 18:05:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:05:13,997 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 18:05:13,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 44 [2018-11-18 18:05:13,997 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 18:05:13,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-18 18:05:13,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-18 18:05:13,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1782, Unknown=5, NotChecked=0, Total=1980 [2018-11-18 18:05:13,998 INFO L87 Difference]: Start difference. First operand 183 states and 214 transitions. Second operand 34 states. [2018-11-18 18:05:15,059 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2018-11-18 18:05:15,585 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-11-18 18:05:15,783 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-11-18 18:05:16,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:16,544 INFO L93 Difference]: Finished difference Result 263 states and 280 transitions. [2018-11-18 18:05:16,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-18 18:05:16,544 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 44 [2018-11-18 18:05:16,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:16,545 INFO L225 Difference]: With dead ends: 263 [2018-11-18 18:05:16,545 INFO L226 Difference]: Without dead ends: 263 [2018-11-18 18:05:16,546 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 57 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1451 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=696, Invalid=4269, Unknown=5, NotChecked=0, Total=4970 [2018-11-18 18:05:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-11-18 18:05:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 194. [2018-11-18 18:05:16,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-11-18 18:05:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2018-11-18 18:05:16,550 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 44 [2018-11-18 18:05:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:16,550 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2018-11-18 18:05:16,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-18 18:05:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2018-11-18 18:05:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 18:05:16,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:16,553 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 18:05:16,554 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION]=== [2018-11-18 18:05:16,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:16,554 INFO L82 PathProgramCache]: Analyzing trace with hash 619055764, now seen corresponding path program 1 times [2018-11-18 18:05:16,554 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:05:16,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:16,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:16,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:05:16,555 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:05:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:05:16,960 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 18:05:16,961 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 18:05:16,961 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-11-18 18:05:16,961 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [9], [12], [13], [16], [19], [20], [23], [26], [27], [30], [33], [34], [37], [40], [43], [47], [49], [52], [196], [200], [206], [207], [209], [210], [211], [217], [221], [261], [266], [270], [276], [277], [280], [282], [284], [291], [292], [293] [2018-11-18 18:05:16,962 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 18:05:16,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 18:05:17,021 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 18:05:17,021 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Performed 322 root evaluator evaluations with a maximum evaluation depth of 3. Performed 322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 37 variables. [2018-11-18 18:05:17,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:17,034 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 18:05:17,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 18:05:17,034 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 18:05:17,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:17,049 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 18:05:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:17,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:17,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:17,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,081 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 18:05:17,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:17,096 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,103 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,104 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 18:05:17,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2018-11-18 18:05:17,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:17,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:17,134 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,136 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:17,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:17,148 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,150 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,158 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:39 [2018-11-18 18:05:17,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2018-11-18 18:05:17,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 18:05:17,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,241 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,254 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-11-18 18:05:17,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:17,259 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,268 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,276 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,277 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:72, output treesize:68 [2018-11-18 18:05:17,305 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:17,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,322 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,323 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,324 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 18:05:17,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,335 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,335 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:79, output treesize:71 [2018-11-18 18:05:17,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2018-11-18 18:05:17,373 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-11-18 18:05:17,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,388 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,409 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 76 [2018-11-18 18:05:17,415 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:17,417 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,429 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,443 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:93, output treesize:83 [2018-11-18 18:05:17,544 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,544 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 59 [2018-11-18 18:05:17,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-11-18 18:05:17,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,591 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,592 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 118 [2018-11-18 18:05:17,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:17,600 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,616 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:17,632 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:129, output treesize:121 [2018-11-18 18:05:17,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 130 [2018-11-18 18:05:17,699 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-18 18:05:17,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 80 [2018-11-18 18:05:17,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-18 18:05:17,751 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,761 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:17,778 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:180, output treesize:156 [2018-11-18 18:05:17,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 123 [2018-11-18 18:05:17,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 164 [2018-11-18 18:05:17,894 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,916 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 97 [2018-11-18 18:05:17,949 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:17,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:17,950 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,960 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:17,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:17,979 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:182, output treesize:174 [2018-11-18 18:05:18,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 102 [2018-11-18 18:05:18,062 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:18,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 31 [2018-11-18 18:05:18,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,090 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:18,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 36 [2018-11-18 18:05:18,093 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:18,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:18,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:05:18,113 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:18,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2018-11-18 18:05:18,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 18:05:18,146 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,159 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:18,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:05:18,159 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,169 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:18,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-18 18:05:18,169 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,172 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:18,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:18,179 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:188, output treesize:18 [2018-11-18 18:05:18,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:05:18,252 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 18:05:25,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 150 [2018-11-18 18:05:25,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 18:05:25,185 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:25,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 124 treesize of output 162 [2018-11-18 18:05:25,662 WARN L180 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 151 [2018-11-18 18:05:25,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 124 [2018-11-18 18:05:25,668 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:05:25,670 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:25,684 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:25,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 124 [2018-11-18 18:05:25,862 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,865 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 133 [2018-11-18 18:05:25,875 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:25,936 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:25,937 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 134 [2018-11-18 18:05:25,938 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:25,989 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 18:05:26,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 119 [2018-11-18 18:05:26,158 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:26,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:05:26,161 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:26,174 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:26,350 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:26,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 113 [2018-11-18 18:05:26,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 112 [2018-11-18 18:05:26,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 92 [2018-11-18 18:05:26,546 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:26,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 99 [2018-11-18 18:05:26,590 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:26,592 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:26,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 88 [2018-11-18 18:05:26,594 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:26,619 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 18:05:26,644 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 18:05:26,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:05:26,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 125 [2018-11-18 18:05:26,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 95 [2018-11-18 18:05:26,844 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:27,120 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 18:05:27,121 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_prenex_38 term size 48 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 18:05:27,123 INFO L168 Benchmark]: Toolchain (without parser) took 28704.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.9 MB). Free memory was 956.6 MB in the beginning and 991.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 222.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,124 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:05:27,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,125 INFO L168 Benchmark]: Boogie Preprocessor took 32.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,126 INFO L168 Benchmark]: RCFGBuilder took 477.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,126 INFO L168 Benchmark]: TraceAbstraction took 27774.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 93.0 MB). Peak memory consumption was 209.9 MB. Max. memory is 11.5 GB. [2018-11-18 18:05:27,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 391.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 477.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27774.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 93.0 MB). Peak memory consumption was 209.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_prenex_38 term size 48 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_prenex_38 term size 48: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 18:05:28,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:05:28,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:05:28,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:05:28,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:05:28,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:05:28,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:05:28,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:05:28,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:05:28,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:05:28,832 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:05:28,832 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:05:28,833 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:05:28,833 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:05:28,834 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:05:28,835 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:05:28,836 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:05:28,838 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:05:28,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:05:28,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:05:28,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:05:28,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:05:28,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:05:28,846 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:05:28,846 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:05:28,847 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:05:28,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:05:28,848 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:05:28,849 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:05:28,850 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:05:28,850 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:05:28,851 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:05:28,851 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:05:28,851 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:05:28,852 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:05:28,853 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:05:28,853 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-11-18 18:05:28,866 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:05:28,866 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:05:28,867 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:05:28,867 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 18:05:28,867 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 18:05:28,867 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 18:05:28,867 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 18:05:28,868 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 18:05:28,868 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 18:05:28,868 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 18:05:28,868 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 18:05:28,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 18:05:28,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 18:05:28,870 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:05:28,871 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:05:28,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:05:28,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 18:05:28,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:05:28,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 18:05:28,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:05:28,872 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:05:28,872 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:05:28,873 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 18:05:28,875 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:05:28,875 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 18:05:28,875 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 109d156101f4cfba3ce2d0d8043b4202b4256b37 [2018-11-18 18:05:28,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:05:28,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:05:28,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:05:28,926 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:05:28,926 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:05:28,927 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:05:28,981 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/9ca23b616/d642a4bb2b594a16adfb7c08546dc97d/FLAGc137ad59e [2018-11-18 18:05:29,356 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:05:29,356 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/sv-benchmarks/c/forester-heap/sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:05:29,363 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/9ca23b616/d642a4bb2b594a16adfb7c08546dc97d/FLAGc137ad59e [2018-11-18 18:05:29,372 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/data/9ca23b616/d642a4bb2b594a16adfb7c08546dc97d [2018-11-18 18:05:29,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:05:29,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:05:29,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:05:29,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:05:29,380 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:05:29,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1714ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29, skipping insertion in model container [2018-11-18 18:05:29,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:05:29,426 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:05:29,668 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:05:29,679 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:05:29,721 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:05:29,831 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:05:29,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29 WrapperNode [2018-11-18 18:05:29,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:05:29,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:05:29,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:05:29,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:05:29,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:05:29,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:05:29,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:05:29,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:05:29,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... [2018-11-18 18:05:29,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:05:29,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:05:29,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:05:29,894 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:05:29,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/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 18:05:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 18:05:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 18:05:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 18:05:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 18:05:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 18:05:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 18:05:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 18:05:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 18:05:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 18:05:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 18:05:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:05:29,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:05:30,554 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:05:30,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:05:30 BoogieIcfgContainer [2018-11-18 18:05:30,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:05:30,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 18:05:30,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 18:05:30,558 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 18:05:30,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:05:29" (1/3) ... [2018-11-18 18:05:30,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db365cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:05:30, skipping insertion in model container [2018-11-18 18:05:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:05:29" (2/3) ... [2018-11-18 18:05:30,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db365cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:05:30, skipping insertion in model container [2018-11-18 18:05:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:05:30" (3/3) ... [2018-11-18 18:05:30,560 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i [2018-11-18 18:05:30,567 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 18:05:30,574 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 65 error locations. [2018-11-18 18:05:30,586 INFO L257 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2018-11-18 18:05:30,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 18:05:30,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 18:05:30,609 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 18:05:30,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 18:05:30,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 18:05:30,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 18:05:30,610 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 18:05:30,610 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 18:05:30,610 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 18:05:30,623 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2018-11-18 18:05:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:05:30,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:30,630 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:30,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:30,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:30,637 INFO L82 PathProgramCache]: Analyzing trace with hash 543179108, now seen corresponding path program 1 times [2018-11-18 18:05:30,640 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:30,640 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:30,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:30,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:30,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:30,738 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:30,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:30,743 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 18:05:30,752 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 18:05:30,752 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:30,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:30,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:30,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:30,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:30,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:30,769 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2018-11-18 18:05:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:31,046 INFO L93 Difference]: Finished difference Result 184 states and 193 transitions. [2018-11-18 18:05:31,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:31,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 18:05:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:31,057 INFO L225 Difference]: With dead ends: 184 [2018-11-18 18:05:31,058 INFO L226 Difference]: Without dead ends: 180 [2018-11-18 18:05:31,059 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-11-18 18:05:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 145. [2018-11-18 18:05:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 18:05:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 152 transitions. [2018-11-18 18:05:31,094 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 152 transitions. Word has length 7 [2018-11-18 18:05:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:31,095 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 152 transitions. [2018-11-18 18:05:31,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 152 transitions. [2018-11-18 18:05:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:05:31,095 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:31,095 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:31,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:31,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:31,096 INFO L82 PathProgramCache]: Analyzing trace with hash 543179109, now seen corresponding path program 1 times [2018-11-18 18:05:31,096 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:31,096 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:31,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:31,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:31,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:31,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,164 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:05:31,182 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 18:05:31,182 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:31,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:31,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:31,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:31,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:31,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:31,187 INFO L87 Difference]: Start difference. First operand 145 states and 152 transitions. Second operand 3 states. [2018-11-18 18:05:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:31,534 INFO L93 Difference]: Finished difference Result 179 states and 188 transitions. [2018-11-18 18:05:31,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:31,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 18:05:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:31,536 INFO L225 Difference]: With dead ends: 179 [2018-11-18 18:05:31,537 INFO L226 Difference]: Without dead ends: 179 [2018-11-18 18:05:31,537 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-11-18 18:05:31,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 141. [2018-11-18 18:05:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-18 18:05:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2018-11-18 18:05:31,547 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 7 [2018-11-18 18:05:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:31,547 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2018-11-18 18:05:31,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2018-11-18 18:05:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 18:05:31,549 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:31,549 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:31,550 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:31,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:31,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1384073739, now seen corresponding path program 1 times [2018-11-18 18:05:31,551 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:31,551 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:31,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:31,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:31,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 18:05:31,625 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,632 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:11 [2018-11-18 18:05:31,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:31,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:31,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:17 [2018-11-18 18:05:31,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 18:05:31,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 18:05:31,687 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:31,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:31,694 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:13 [2018-11-18 18:05:31,721 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 18:05:31,721 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:31,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:31,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 18:05:31,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:05:31,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:05:31,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:05:31,723 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand 7 states. [2018-11-18 18:05:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:32,402 INFO L93 Difference]: Finished difference Result 193 states and 202 transitions. [2018-11-18 18:05:32,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 18:05:32,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-18 18:05:32,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:32,404 INFO L225 Difference]: With dead ends: 193 [2018-11-18 18:05:32,404 INFO L226 Difference]: Without dead ends: 193 [2018-11-18 18:05:32,405 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-11-18 18:05:32,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-11-18 18:05:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 150. [2018-11-18 18:05:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-18 18:05:32,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 168 transitions. [2018-11-18 18:05:32,413 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 168 transitions. Word has length 13 [2018-11-18 18:05:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:32,414 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 168 transitions. [2018-11-18 18:05:32,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:05:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 168 transitions. [2018-11-18 18:05:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 18:05:32,415 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:32,416 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:32,416 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:32,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:32,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1384073740, now seen corresponding path program 1 times [2018-11-18 18:05:32,417 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:32,417 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:32,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:32,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:32,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:32,472 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,477 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:05:32,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:32,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:32,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:32,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:32,515 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,517 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,526 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:30, output treesize:17 [2018-11-18 18:05:32,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 18:05:32,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 18:05:32,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 18:05:32,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 18:05:32,557 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,559 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:32,564 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-11-18 18:05:32,583 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 18:05:32,583 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:32,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:32,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:32,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:32,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:32,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:32,586 INFO L87 Difference]: Start difference. First operand 150 states and 168 transitions. Second operand 6 states. [2018-11-18 18:05:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:33,137 INFO L93 Difference]: Finished difference Result 209 states and 239 transitions. [2018-11-18 18:05:33,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:05:33,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-18 18:05:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:33,138 INFO L225 Difference]: With dead ends: 209 [2018-11-18 18:05:33,138 INFO L226 Difference]: Without dead ends: 209 [2018-11-18 18:05:33,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 18:05:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-11-18 18:05:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 146. [2018-11-18 18:05:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 18:05:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2018-11-18 18:05:33,147 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 13 [2018-11-18 18:05:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:33,147 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2018-11-18 18:05:33,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2018-11-18 18:05:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:05:33,148 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:33,148 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:33,148 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:33,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:33,149 INFO L82 PathProgramCache]: Analyzing trace with hash -31936846, now seen corresponding path program 1 times [2018-11-18 18:05:33,149 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:33,149 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:33,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:33,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:33,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:33,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,216 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 18:05:33,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:33,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:33,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,229 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-11-18 18:05:33,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 18:05:33,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-18 18:05:33,248 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,249 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,252 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-11-18 18:05:33,265 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 18:05:33,265 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:33,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:33,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:33,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:33,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:33,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:33,268 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand 6 states. [2018-11-18 18:05:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:33,711 INFO L93 Difference]: Finished difference Result 186 states and 197 transitions. [2018-11-18 18:05:33,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:05:33,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 18:05:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:33,712 INFO L225 Difference]: With dead ends: 186 [2018-11-18 18:05:33,712 INFO L226 Difference]: Without dead ends: 186 [2018-11-18 18:05:33,712 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 18:05:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-18 18:05:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 145. [2018-11-18 18:05:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 18:05:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 163 transitions. [2018-11-18 18:05:33,716 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 163 transitions. Word has length 19 [2018-11-18 18:05:33,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:33,717 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 163 transitions. [2018-11-18 18:05:33,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 163 transitions. [2018-11-18 18:05:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:05:33,717 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:33,718 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:05:33,718 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:33,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:33,718 INFO L82 PathProgramCache]: Analyzing trace with hash -31936845, now seen corresponding path program 1 times [2018-11-18 18:05:33,718 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:33,718 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:33,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:33,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:33,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:33,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,796 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:05:33,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:33,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:33,813 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:05:33,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:05:33,832 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,834 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,842 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:19 [2018-11-18 18:05:33,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 18:05:33,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 18:05:33,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,867 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 18:05:33,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-18 18:05:33,887 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,889 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:33,897 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2018-11-18 18:05:33,920 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 18:05:33,920 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:33,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:33,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 18:05:33,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:05:33,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:05:33,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:05:33,923 INFO L87 Difference]: Start difference. First operand 145 states and 163 transitions. Second operand 6 states. [2018-11-18 18:05:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:34,390 INFO L93 Difference]: Finished difference Result 205 states and 235 transitions. [2018-11-18 18:05:34,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 18:05:34,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 18:05:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:34,392 INFO L225 Difference]: With dead ends: 205 [2018-11-18 18:05:34,392 INFO L226 Difference]: Without dead ends: 205 [2018-11-18 18:05:34,392 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 18:05:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-18 18:05:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 142. [2018-11-18 18:05:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-11-18 18:05:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 160 transitions. [2018-11-18 18:05:34,396 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 160 transitions. Word has length 19 [2018-11-18 18:05:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:34,397 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 160 transitions. [2018-11-18 18:05:34,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:05:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 160 transitions. [2018-11-18 18:05:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 18:05:34,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:34,397 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] [2018-11-18 18:05:34,398 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:34,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:34,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1559782426, now seen corresponding path program 1 times [2018-11-18 18:05:34,398 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:34,398 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:34,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:34,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:34,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:34,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:34,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:34,485 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 18:05:34,488 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 18:05:34,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:34,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:34,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:34,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:34,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:34,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:34,490 INFO L87 Difference]: Start difference. First operand 142 states and 160 transitions. Second operand 3 states. [2018-11-18 18:05:34,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:34,626 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2018-11-18 18:05:34,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:34,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 18:05:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:34,627 INFO L225 Difference]: With dead ends: 148 [2018-11-18 18:05:34,627 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 18:05:34,627 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 18:05:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 137. [2018-11-18 18:05:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 18:05:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2018-11-18 18:05:34,630 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 25 [2018-11-18 18:05:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:34,631 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2018-11-18 18:05:34,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2018-11-18 18:05:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 18:05:34,631 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:34,631 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] [2018-11-18 18:05:34,632 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:34,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1559782427, now seen corresponding path program 1 times [2018-11-18 18:05:34,632 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:34,632 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:34,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:34,729 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:34,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:34,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:34,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:34,738 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:05:34,746 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 18:05:34,746 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:34,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:34,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:05:34,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 18:05:34,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 18:05:34,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:34,750 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand 3 states. [2018-11-18 18:05:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:34,907 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2018-11-18 18:05:34,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 18:05:34,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 18:05:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:34,908 INFO L225 Difference]: With dead ends: 143 [2018-11-18 18:05:34,908 INFO L226 Difference]: Without dead ends: 143 [2018-11-18 18:05:34,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 18:05:34,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-18 18:05:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 132. [2018-11-18 18:05:34,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-18 18:05:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 150 transitions. [2018-11-18 18:05:34,911 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 150 transitions. Word has length 25 [2018-11-18 18:05:34,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:34,911 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 150 transitions. [2018-11-18 18:05:34,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 18:05:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 150 transitions. [2018-11-18 18:05:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 18:05:34,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:34,912 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] [2018-11-18 18:05:34,912 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:34,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:34,912 INFO L82 PathProgramCache]: Analyzing trace with hash 229568258, now seen corresponding path program 1 times [2018-11-18 18:05:34,912 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:34,913 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:34,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:35,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:35,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:35,024 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:35,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,043 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-18 18:05:35,055 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:35,056 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:35,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:05:35,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 18:05:35,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:18 [2018-11-18 18:05:35,148 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:35,151 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:35,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:05:35,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-18 18:05:35,176 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:35,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:35,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:27 [2018-11-18 18:05:35,275 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 18:05:35,275 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:35,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:35,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:05:35,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 18:05:35,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 18:05:35,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 18:05:35,278 INFO L87 Difference]: Start difference. First operand 132 states and 150 transitions. Second operand 8 states. [2018-11-18 18:05:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:36,236 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2018-11-18 18:05:36,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 18:05:36,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-11-18 18:05:36,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:36,239 INFO L225 Difference]: With dead ends: 225 [2018-11-18 18:05:36,239 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 18:05:36,240 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-11-18 18:05:36,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 18:05:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 172. [2018-11-18 18:05:36,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 18:05:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2018-11-18 18:05:36,244 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 28 [2018-11-18 18:05:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:36,245 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2018-11-18 18:05:36,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 18:05:36,245 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2018-11-18 18:05:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 18:05:36,246 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:36,246 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] [2018-11-18 18:05:36,246 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:36,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:36,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1473317779, now seen corresponding path program 1 times [2018-11-18 18:05:36,246 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:36,247 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:36,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:36,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:36,315 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 18:05:36,316 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:36,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:36,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 18:05:36,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 18:05:36,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 18:05:36,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 18:05:36,318 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand 4 states. [2018-11-18 18:05:36,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:05:36,507 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2018-11-18 18:05:36,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 18:05:36,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-18 18:05:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:05:36,508 INFO L225 Difference]: With dead ends: 260 [2018-11-18 18:05:36,508 INFO L226 Difference]: Without dead ends: 260 [2018-11-18 18:05:36,509 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 18:05:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-11-18 18:05:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 172. [2018-11-18 18:05:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 18:05:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2018-11-18 18:05:36,513 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 29 [2018-11-18 18:05:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:05:36,513 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2018-11-18 18:05:36,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 18:05:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2018-11-18 18:05:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 18:05:36,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:05:36,514 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] [2018-11-18 18:05:36,515 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:05:36,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:05:36,515 INFO L82 PathProgramCache]: Analyzing trace with hash 824430105, now seen corresponding path program 1 times [2018-11-18 18:05:36,515 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:05:36,515 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:05:36,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:05:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:05:36,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:05:36,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:05:36,667 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,676 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:05:36,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 18:05:36,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:36,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 18:05:36,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:36,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,729 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,739 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,740 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:29 [2018-11-18 18:05:36,757 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:36,759 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:36,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:05:36,760 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,770 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:26 [2018-11-18 18:05:36,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 18:05:36,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:36,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:36,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 18:05:36,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:36,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:36,848 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,855 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,869 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,869 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:48, output treesize:30 [2018-11-18 18:05:36,942 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:36,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-11-18 18:05:36,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 18:05:36,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:36,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,005 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 52 [2018-11-18 18:05:37,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:05:37,018 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,034 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,057 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:70, output treesize:62 [2018-11-18 18:05:37,106 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,107 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:05:37,109 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,134 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:59 [2018-11-18 18:05:37,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 44 [2018-11-18 18:05:37,214 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-11-18 18:05:37,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,236 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2018-11-18 18:05:37,308 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:05:37,312 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,336 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,372 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:81, output treesize:63 [2018-11-18 18:05:37,580 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:37,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 92 [2018-11-18 18:05:37,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 71 [2018-11-18 18:05:37,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-18 18:05:37,808 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:37,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:38,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 98 [2018-11-18 18:05:38,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 105 [2018-11-18 18:05:38,027 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:38,174 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:38,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 80 [2018-11-18 18:05:38,263 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:38,401 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:05:38,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:05:38,485 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:105, output treesize:171 [2018-11-18 18:05:38,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 156 treesize of output 174 [2018-11-18 18:05:38,764 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:38,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 166 [2018-11-18 18:05:38,766 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:38,969 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:39,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 120 [2018-11-18 18:05:39,432 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:39,445 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:39,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 135 [2018-11-18 18:05:39,524 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-18 18:05:39,767 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:39,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 138 [2018-11-18 18:05:39,769 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:39,910 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:05:40,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 101 [2018-11-18 18:05:40,318 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,320 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,322 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 18:05:40,323 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:40,371 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:40,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 96 [2018-11-18 18:05:40,617 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,620 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:40,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 18:05:40,622 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:40,657 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:40,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-11-18 18:05:40,815 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:277, output treesize:315 [2018-11-18 18:05:41,102 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2018-11-18 18:05:41,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 105 [2018-11-18 18:05:41,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 82 [2018-11-18 18:05:41,301 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:41,399 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:41,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 73 [2018-11-18 18:05:41,402 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:41,499 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:41,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 61 [2018-11-18 18:05:41,500 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:41,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 76 [2018-11-18 18:05:41,591 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:05:41,674 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:41,678 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:41,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 81 [2018-11-18 18:05:41,705 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:05:41,842 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-18 18:05:42,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2018-11-18 18:05:42,043 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:05:42,044 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 18:05:42,067 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,084 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2018-11-18 18:05:42,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2018-11-18 18:05:42,274 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2018-11-18 18:05:42,371 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,470 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-11-18 18:05:42,472 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2018-11-18 18:05:42,554 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,631 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2018-11-18 18:05:42,635 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,671 INFO L267 ElimStorePlain]: Start of recursive call 11: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 49 [2018-11-18 18:05:42,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2018-11-18 18:05:42,697 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,752 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2018-11-18 18:05:42,753 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2018-11-18 18:05:42,803 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2018-11-18 18:05:42,845 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2018-11-18 18:05:42,892 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,906 INFO L267 ElimStorePlain]: Start of recursive call 17: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2018-11-18 18:05:42,934 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:42,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:05:42,935 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 18:05:42,971 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:42,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 18:05:42,995 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,005 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2018-11-18 18:05:43,096 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:05:43,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:05:43,097 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2018-11-18 18:05:43,108 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,111 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:05:43,124 INFO L202 ElimStorePlain]: Needed 29 recursive calls to eliminate 9 variables, input treesize:225, output treesize:7 [2018-11-18 18:05:43,202 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 18:05:43,202 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:05:43,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:05:43,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 18:05:43,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 18:05:43,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 18:05:43,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=253, Unknown=3, NotChecked=0, Total=306 [2018-11-18 18:05:43,210 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 18 states. [2018-11-18 18:05:52,244 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-11-18 18:05:54,788 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2018-11-18 18:05:55,123 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2018-11-18 18:05:55,415 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2018-11-18 18:05:56,422 WARN L180 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 118 [2018-11-18 18:05:58,304 WARN L180 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 122 DAG size of output: 122 [2018-11-18 18:05:59,236 WARN L180 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-11-18 18:05:59,668 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-18 18:06:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:06:00,808 INFO L93 Difference]: Finished difference Result 223 states and 247 transitions. [2018-11-18 18:06:00,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 18:06:00,808 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-11-18 18:06:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:06:00,809 INFO L225 Difference]: With dead ends: 223 [2018-11-18 18:06:00,809 INFO L226 Difference]: Without dead ends: 223 [2018-11-18 18:06:00,810 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=226, Invalid=961, Unknown=3, NotChecked=0, Total=1190 [2018-11-18 18:06:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-18 18:06:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 149. [2018-11-18 18:06:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 18:06:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 167 transitions. [2018-11-18 18:06:00,812 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 167 transitions. Word has length 33 [2018-11-18 18:06:00,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:06:00,812 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 167 transitions. [2018-11-18 18:06:00,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 18:06:00,812 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 167 transitions. [2018-11-18 18:06:00,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 18:06:00,815 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:06:00,815 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] [2018-11-18 18:06:00,815 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:06:00,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:06:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash -365162680, now seen corresponding path program 1 times [2018-11-18 18:06:00,816 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:06:00,816 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:06:00,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:06:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:06:00,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:06:00,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:06:00,953 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:00,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:06:00,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:00,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:00,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-18 18:06:00,983 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:00,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 18:06:00,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:00,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:00,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:00,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:06:00,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:18 [2018-11-18 18:06:01,055 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:01,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-18 18:06:01,056 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,078 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:01,079 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:01,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-18 18:06:01,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:01,096 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:38 [2018-11-18 18:06:01,167 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:01,168 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:06:01,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 18:06:01,169 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,195 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:01,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 34 [2018-11-18 18:06:01,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:01,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:01,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:23 [2018-11-18 18:06:01,272 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 18:06:01,272 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:06:01,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:06:01,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 18:06:01,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 18:06:01,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 18:06:01,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-18 18:06:01,275 INFO L87 Difference]: Start difference. First operand 149 states and 167 transitions. Second operand 10 states. [2018-11-18 18:06:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:06:02,301 INFO L93 Difference]: Finished difference Result 231 states and 253 transitions. [2018-11-18 18:06:02,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 18:06:02,302 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-11-18 18:06:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:06:02,303 INFO L225 Difference]: With dead ends: 231 [2018-11-18 18:06:02,303 INFO L226 Difference]: Without dead ends: 231 [2018-11-18 18:06:02,303 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2018-11-18 18:06:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-11-18 18:06:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 186. [2018-11-18 18:06:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-11-18 18:06:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2018-11-18 18:06:02,308 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 36 [2018-11-18 18:06:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:06:02,308 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2018-11-18 18:06:02,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 18:06:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2018-11-18 18:06:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 18:06:02,309 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:06:02,310 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 18:06:02,311 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-18 18:06:02,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:06:02,311 INFO L82 PathProgramCache]: Analyzing trace with hash 363356147, now seen corresponding path program 1 times [2018-11-18 18:06:02,311 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 18:06:02,312 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_039d4796-4b38-4c7a-82b0-ecc5682f3a9a/bin-2019/utaipan/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:06:02,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:06:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:06:02,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:06:02,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 18:06:02,462 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,470 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 18:06:02,481 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,482 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:06:02,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:8 [2018-11-18 18:06:02,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 18:06:02,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 18:06:02,503 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12 [2018-11-18 18:06:02,555 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-18 18:06:02,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 18:06:02,567 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,592 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:31 [2018-11-18 18:06:02,625 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,626 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 18:06:02,627 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,642 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:28 [2018-11-18 18:06:02,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 18:06:02,689 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 18:06:02,692 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:02,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:37 [2018-11-18 18:06:02,873 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:02,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 76 [2018-11-18 18:06:02,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 77 [2018-11-18 18:06:02,924 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:03,011 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 60 [2018-11-18 18:06:03,062 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 18:06:03,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:06:03,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:03,184 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:72, output treesize:113 [2018-11-18 18:06:03,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 78 [2018-11-18 18:06:03,374 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 100 [2018-11-18 18:06:03,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:03,500 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,508 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 74 [2018-11-18 18:06:03,527 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 18:06:03,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:06:03,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 50 [2018-11-18 18:06:03,847 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,848 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:03,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 18:06:03,851 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:03,876 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:03,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-11-18 18:06:03,965 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:157, output treesize:182 [2018-11-18 18:06:04,200 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-11-18 18:06:04,221 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:04,225 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:04,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 109 [2018-11-18 18:06:04,227 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:04,328 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:04,329 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:04,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 76 [2018-11-18 18:06:04,330 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:04,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 98 [2018-11-18 18:06:04,426 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:04,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2018-11-18 18:06:04,430 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:04,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:04,528 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:162, output treesize:164 [2018-11-18 18:06:04,711 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-18 18:06:04,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 111 treesize of output 120 [2018-11-18 18:06:04,861 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:04,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 114 [2018-11-18 18:06:04,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:05,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 91 [2018-11-18 18:06:05,710 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:06,834 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:07,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 109 [2018-11-18 18:06:07,417 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:07,763 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 18:06:08,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 83 [2018-11-18 18:06:08,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2018-11-18 18:06:08,376 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:08,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 64 [2018-11-18 18:06:08,518 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:08,590 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:09,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 16 dim-0 vars, and 5 xjuncts. [2018-11-18 18:06:09,146 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:190, output treesize:412 [2018-11-18 18:06:09,591 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 122 [2018-11-18 18:06:10,130 WARN L180 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2018-11-18 18:06:10,171 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 18:06:10,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:10,360 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:10,362 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:10,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2018-11-18 18:06:10,364 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:10,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:10,537 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:10,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 115 [2018-11-18 18:06:10,539 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:10,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:10,827 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 16 variables, input treesize:333, output treesize:190 [2018-11-18 18:06:11,127 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2018-11-18 18:06:11,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 53 [2018-11-18 18:06:11,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 18:06:11,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 18:06:11,185 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,211 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:11,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 18:06:11,212 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 91 [2018-11-18 18:06:11,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 65 [2018-11-18 18:06:11,376 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2018-11-18 18:06:11,676 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:11,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 73 [2018-11-18 18:06:11,988 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:12,243 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:12,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2018-11-18 18:06:12,247 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:12,467 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:12,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-11-18 18:06:12,468 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:12,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 61 [2018-11-18 18:06:12,680 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:12,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:12,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2018-11-18 18:06:12,918 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:13,101 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:06:13,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 31 [2018-11-18 18:06:13,107 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 18:06:13,197 INFO L267 ElimStorePlain]: Start of recursive call 6: 12 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:06:13,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:13,219 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 11 variables, input treesize:184, output treesize:35 [2018-11-18 18:06:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:06:13,385 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 18:06:13,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-11-18 18:06:13,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 18:06:13,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-18 18:06:13,898 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:69 [2018-11-18 18:06:32,997 WARN L180 SmtUtils]: Spent 14.14 s on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2018-11-18 18:06:42,576 WARN L180 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 47 [2018-11-18 18:07:07,296 WARN L180 SmtUtils]: Spent 8.75 s on a formula simplification that was a NOOP. DAG size: 55 [2018-11-18 18:07:39,292 WARN L180 SmtUtils]: Spent 12.71 s on a formula simplification that was a NOOP. DAG size: 54 [2018-11-18 18:08:18,674 WARN L180 SmtUtils]: Spent 10.33 s on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 18:08:19,072 WARN L180 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2018-11-18 18:08:19,076 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:08:19,077 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:08:19,080 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:08:19,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 88 [2018-11-18 18:08:19,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:08:19,215 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:08:19,218 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:08:19,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 153 [2018-11-18 18:08:19,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:08:19,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-18 18:08:19,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:160, output treesize:242 [2018-11-18 18:08:23,251 WARN L180 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 51 [2018-11-18 18:08:44,438 WARN L180 SmtUtils]: Spent 6.03 s on a formula simplification that was a NOOP. DAG size: 63 [2018-11-18 18:09:14,946 WARN L180 SmtUtils]: Spent 15.63 s on a formula simplification that was a NOOP. DAG size: 68 [2018-11-18 18:09:48,205 WARN L180 SmtUtils]: Spent 12.17 s on a formula simplification that was a NOOP. DAG size: 68 [2018-11-18 18:09:48,213 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:09:48,214 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:09:48,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 268 [2018-11-18 18:09:48,215 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 18:09:48,356 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:09:48,356 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:09:48,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 151 [2018-11-18 18:09:48,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:09:48,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-1 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-18 18:09:48,486 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 11 variables, input treesize:438, output treesize:413 [2018-11-18 18:10:01,882 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 62 [2018-11-18 18:10:01,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 202 [2018-11-18 18:10:02,016 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2018-11-18 18:10:02,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 18:10:02,022 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:02,064 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:02,066 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:10:02,083 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:02,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 121 [2018-11-18 18:10:02,221 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-11-18 18:10:02,368 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 60 [2018-11-18 18:10:03,021 WARN L180 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2018-11-18 18:10:03,028 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:03,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2018-11-18 18:10:03,032 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:03,547 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:03,548 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:10:03,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2018-11-18 18:10:03,554 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:03,745 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:03,747 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 18:10:03,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2018-11-18 18:10:03,752 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:03,908 INFO L267 ElimStorePlain]: Start of recursive call 5: 4 dim-0 vars, 7 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 18:10:03,990 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:04,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 76 [2018-11-18 18:10:04,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-18 18:10:04,097 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:04,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:10:04,098 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,110 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2018-11-18 18:10:04,159 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:04,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 18:10:04,159 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,175 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:04,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-11-18 18:10:04,179 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,184 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,188 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:04,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 90 [2018-11-18 18:10:04,829 WARN L180 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2018-11-18 18:10:04,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 79 [2018-11-18 18:10:04,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2018-11-18 18:10:04,872 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-18 18:10:05,556 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:05,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:10:05,557 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:05,586 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:05,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-11-18 18:10:05,606 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:05,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:10:05,607 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:05,652 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:05,652 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 18:10:05,652 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:07,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 59 [2018-11-18 18:10:07,612 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:07,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 18:10:07,613 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:07,664 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:07,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 55 [2018-11-18 18:10:07,801 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:07,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 18:10:07,802 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:07,882 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:07,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 16 [2018-11-18 18:10:07,886 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:07,898 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 18:10:09,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 59 [2018-11-18 18:10:09,282 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:09,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2018-11-18 18:10:09,287 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:09,358 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 18:10:09,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 19 [2018-11-18 18:10:09,362 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 18:10:09,600 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 18:10:09,600 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_92 term size 22 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 18:10:09,602 INFO L168 Benchmark]: Toolchain (without parser) took 280227.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.9 MB). Free memory was 949.2 MB in the beginning and 1.3 GB in the end (delta: -307.1 MB). Peak memory consumption was 495.0 MB. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: Boogie Preprocessor took 35.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: RCFGBuilder took 661.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2018-11-18 18:10:09,603 INFO L168 Benchmark]: TraceAbstraction took 279046.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -207.1 MB). Peak memory consumption was 466.5 MB. Max. memory is 11.5 GB. [2018-11-18 18:10:09,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 455.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 661.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 279046.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -207.1 MB). Peak memory consumption was 466.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_92 term size 22 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_92 term size 22: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...