./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30390fe155d7f123b603151bf2b8a7453d49cf9d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30390fe155d7f123b603151bf2b8a7453d49cf9d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_33 term size 24 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:28:22,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:28:22,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:28:22,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:28:22,471 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:28:22,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:28:22,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:28:22,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:28:22,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:28:22,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:28:22,475 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:28:22,476 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:28:22,476 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:28:22,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:28:22,478 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:28:22,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:28:22,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:28:22,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:28:22,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:28:22,482 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:28:22,483 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:28:22,484 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:28:22,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:28:22,486 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:28:22,486 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:28:22,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:28:22,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:28:22,488 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:28:22,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:28:22,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:28:22,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:28:22,490 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:28:22,490 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:28:22,490 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:28:22,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:28:22,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:28:22,491 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 11:28:22,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:28:22,501 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:28:22,502 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:28:22,502 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:28:22,502 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:28:22,503 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:28:22,503 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:28:22,503 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:28:22,503 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:28:22,503 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:28:22,504 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:28:22,505 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:28:22,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:28:22,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:28:22,506 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 30390fe155d7f123b603151bf2b8a7453d49cf9d [2018-11-18 11:28:22,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:28:22,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:28:22,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:28:22,541 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:28:22,542 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:28:22,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:22,579 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/d298cf23e/ac32fa72576f4e12933d5aecdb6f621d/FLAGd56b1b1a5 [2018-11-18 11:28:23,038 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:28:23,039 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:23,050 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/d298cf23e/ac32fa72576f4e12933d5aecdb6f621d/FLAGd56b1b1a5 [2018-11-18 11:28:23,060 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/d298cf23e/ac32fa72576f4e12933d5aecdb6f621d [2018-11-18 11:28:23,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:28:23,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:28:23,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:28:23,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:28:23,066 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:28:23,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5141c186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23, skipping insertion in model container [2018-11-18 11:28:23,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:28:23,105 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:28:23,364 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:28:23,370 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:28:23,460 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:28:23,539 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:28:23,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23 WrapperNode [2018-11-18 11:28:23,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:28:23,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:28:23,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:28:23,540 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:28:23,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... [2018-11-18 11:28:23,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:28:23,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:28:23,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:28:23,605 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:28:23,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 11:28:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 11:28:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:28:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 11:28:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 11:28:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 11:28:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 11:28:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 11:28:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 11:28:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 11:28:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 11:28:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 11:28:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 11:28:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2018-11-18 11:28:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2018-11-18 11:28:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2018-11-18 11:28:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2018-11-18 11:28:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2018-11-18 11:28:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2018-11-18 11:28:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2018-11-18 11:28:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2018-11-18 11:28:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2018-11-18 11:28:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2018-11-18 11:28:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 11:28:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:28:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:28:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 11:28:24,117 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:28:24,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:24 BoogieIcfgContainer [2018-11-18 11:28:24,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:28:24,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:28:24,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:28:24,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:28:24,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:28:23" (1/3) ... [2018-11-18 11:28:24,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e33b2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:24, skipping insertion in model container [2018-11-18 11:28:24,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:23" (2/3) ... [2018-11-18 11:28:24,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e33b2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:24, skipping insertion in model container [2018-11-18 11:28:24,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:24" (3/3) ... [2018-11-18 11:28:24,125 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:24,133 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:28:24,139 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:28:24,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:28:24,176 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:28:24,176 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:28:24,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:28:24,177 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:28:24,177 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:28:24,177 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:28:24,177 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:28:24,177 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:28:24,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:28:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-11-18 11:28:24,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:28:24,199 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:24,199 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:24,201 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:24,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash 839258423, now seen corresponding path program 1 times [2018-11-18 11:28:24,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:24,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:24,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:24,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:24,313 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 11:28:24,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:24,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:28:24,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:28:24,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:28:24,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:28:24,328 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-11-18 11:28:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:24,361 INFO L93 Difference]: Finished difference Result 300 states and 471 transitions. [2018-11-18 11:28:24,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:28:24,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 11:28:24,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:24,369 INFO L225 Difference]: With dead ends: 300 [2018-11-18 11:28:24,370 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 11:28:24,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:28:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 11:28:24,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-11-18 11:28:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 11:28:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2018-11-18 11:28:24,408 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 15 [2018-11-18 11:28:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:24,408 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2018-11-18 11:28:24,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:28:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2018-11-18 11:28:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 11:28:24,410 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:24,410 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] [2018-11-18 11:28:24,410 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:24,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:24,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1868078728, now seen corresponding path program 1 times [2018-11-18 11:28:24,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:24,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:24,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:24,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:24,516 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 11:28:24,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:24,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:28:24,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:28:24,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:28:24,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:28:24,518 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand 5 states. [2018-11-18 11:28:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:24,641 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2018-11-18 11:28:24,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:28:24,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-18 11:28:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:24,643 INFO L225 Difference]: With dead ends: 141 [2018-11-18 11:28:24,643 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 11:28:24,644 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:28:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 11:28:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 11:28:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 11:28:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2018-11-18 11:28:24,656 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 35 [2018-11-18 11:28:24,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:24,657 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2018-11-18 11:28:24,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:28:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2018-11-18 11:28:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 11:28:24,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:24,658 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:24,658 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:24,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:24,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1961064138, now seen corresponding path program 1 times [2018-11-18 11:28:24,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:24,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:24,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:24,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:24,906 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 11:28:24,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:24,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 11:28:24,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 11:28:24,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 11:28:24,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:28:24,907 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 15 states. [2018-11-18 11:28:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:26,124 INFO L93 Difference]: Finished difference Result 309 states and 371 transitions. [2018-11-18 11:28:26,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 11:28:26,125 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2018-11-18 11:28:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:26,128 INFO L225 Difference]: With dead ends: 309 [2018-11-18 11:28:26,128 INFO L226 Difference]: Without dead ends: 306 [2018-11-18 11:28:26,128 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2018-11-18 11:28:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-11-18 11:28:26,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 275. [2018-11-18 11:28:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 333 transitions. [2018-11-18 11:28:26,153 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 333 transitions. Word has length 38 [2018-11-18 11:28:26,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:26,153 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 333 transitions. [2018-11-18 11:28:26,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 11:28:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 333 transitions. [2018-11-18 11:28:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:28:26,155 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:26,155 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:26,155 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:26,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:26,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1640133318, now seen corresponding path program 1 times [2018-11-18 11:28:26,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:26,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:26,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:26,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:26,451 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 11:28:26,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:26,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 11:28:26,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 11:28:26,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 11:28:26,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:28:26,452 INFO L87 Difference]: Start difference. First operand 275 states and 333 transitions. Second operand 15 states. [2018-11-18 11:28:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:27,760 INFO L93 Difference]: Finished difference Result 303 states and 363 transitions. [2018-11-18 11:28:27,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 11:28:27,761 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2018-11-18 11:28:27,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:27,763 INFO L225 Difference]: With dead ends: 303 [2018-11-18 11:28:27,763 INFO L226 Difference]: Without dead ends: 300 [2018-11-18 11:28:27,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2018-11-18 11:28:27,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-11-18 11:28:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 275. [2018-11-18 11:28:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 332 transitions. [2018-11-18 11:28:27,786 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 332 transitions. Word has length 41 [2018-11-18 11:28:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:27,786 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 332 transitions. [2018-11-18 11:28:27,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 11:28:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 332 transitions. [2018-11-18 11:28:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 11:28:27,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:27,787 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:27,787 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:27,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:27,787 INFO L82 PathProgramCache]: Analyzing trace with hash 528882512, now seen corresponding path program 1 times [2018-11-18 11:28:27,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:27,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:27,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:27,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:27,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:28,088 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 11:28:28,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:28,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 11:28:28,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 11:28:28,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 11:28:28,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:28:28,089 INFO L87 Difference]: Start difference. First operand 275 states and 332 transitions. Second operand 15 states. [2018-11-18 11:28:29,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:29,414 INFO L93 Difference]: Finished difference Result 302 states and 361 transitions. [2018-11-18 11:28:29,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 11:28:29,415 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-11-18 11:28:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:29,417 INFO L225 Difference]: With dead ends: 302 [2018-11-18 11:28:29,417 INFO L226 Difference]: Without dead ends: 299 [2018-11-18 11:28:29,418 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2018-11-18 11:28:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-11-18 11:28:29,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 275. [2018-11-18 11:28:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 331 transitions. [2018-11-18 11:28:29,443 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 331 transitions. Word has length 45 [2018-11-18 11:28:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:29,444 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 331 transitions. [2018-11-18 11:28:29,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 11:28:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 331 transitions. [2018-11-18 11:28:29,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 11:28:29,444 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:29,445 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:29,445 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:29,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:29,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1755000030, now seen corresponding path program 1 times [2018-11-18 11:28:29,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:29,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:29,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:29,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:29,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:29,793 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 11:28:29,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:29,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-18 11:28:29,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 11:28:29,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 11:28:29,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-11-18 11:28:29,794 INFO L87 Difference]: Start difference. First operand 275 states and 331 transitions. Second operand 16 states. [2018-11-18 11:28:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:31,157 INFO L93 Difference]: Finished difference Result 301 states and 359 transitions. [2018-11-18 11:28:31,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 11:28:31,158 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 48 [2018-11-18 11:28:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:31,159 INFO L225 Difference]: With dead ends: 301 [2018-11-18 11:28:31,159 INFO L226 Difference]: Without dead ends: 298 [2018-11-18 11:28:31,160 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2018-11-18 11:28:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-11-18 11:28:31,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 275. [2018-11-18 11:28:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 330 transitions. [2018-11-18 11:28:31,179 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 330 transitions. Word has length 48 [2018-11-18 11:28:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:31,179 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 330 transitions. [2018-11-18 11:28:31,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 11:28:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 330 transitions. [2018-11-18 11:28:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 11:28:31,181 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:31,181 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:31,181 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:31,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:31,182 INFO L82 PathProgramCache]: Analyzing trace with hash 340456222, now seen corresponding path program 1 times [2018-11-18 11:28:31,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:31,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:31,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:31,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:31,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:31,508 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-18 11:28:31,866 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 11:28:31,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:31,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-18 11:28:31,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 11:28:31,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 11:28:31,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-11-18 11:28:31,867 INFO L87 Difference]: Start difference. First operand 275 states and 330 transitions. Second operand 16 states. [2018-11-18 11:28:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:33,475 INFO L93 Difference]: Finished difference Result 300 states and 357 transitions. [2018-11-18 11:28:33,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 11:28:33,476 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2018-11-18 11:28:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:33,477 INFO L225 Difference]: With dead ends: 300 [2018-11-18 11:28:33,478 INFO L226 Difference]: Without dead ends: 297 [2018-11-18 11:28:33,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2018-11-18 11:28:33,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-11-18 11:28:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 275. [2018-11-18 11:28:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 329 transitions. [2018-11-18 11:28:33,509 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 329 transitions. Word has length 51 [2018-11-18 11:28:33,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:33,509 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 329 transitions. [2018-11-18 11:28:33,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 11:28:33,509 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 329 transitions. [2018-11-18 11:28:33,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 11:28:33,510 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:33,510 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:33,510 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:33,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:33,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1222088024, now seen corresponding path program 1 times [2018-11-18 11:28:33,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:33,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:33,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:33,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:33,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:33,899 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 11:28:33,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:33,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 11:28:33,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 11:28:33,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 11:28:33,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-11-18 11:28:33,900 INFO L87 Difference]: Start difference. First operand 275 states and 329 transitions. Second operand 17 states. [2018-11-18 11:28:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:35,258 INFO L93 Difference]: Finished difference Result 299 states and 355 transitions. [2018-11-18 11:28:35,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 11:28:35,259 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2018-11-18 11:28:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:35,260 INFO L225 Difference]: With dead ends: 299 [2018-11-18 11:28:35,260 INFO L226 Difference]: Without dead ends: 296 [2018-11-18 11:28:35,261 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2018-11-18 11:28:35,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-11-18 11:28:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 275. [2018-11-18 11:28:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 11:28:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 328 transitions. [2018-11-18 11:28:35,279 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 328 transitions. Word has length 55 [2018-11-18 11:28:35,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:35,279 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 328 transitions. [2018-11-18 11:28:35,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 11:28:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 328 transitions. [2018-11-18 11:28:35,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 11:28:35,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:35,281 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:35,281 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:35,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:35,281 INFO L82 PathProgramCache]: Analyzing trace with hash -943935124, now seen corresponding path program 1 times [2018-11-18 11:28:35,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:28:35,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:28:35,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:35,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:35,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:28:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:28:35,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:28:35,533 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:35,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:35,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:28:35,700 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 77 treesize of output 48 [2018-11-18 11:28:35,736 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 10 treesize of output 9 [2018-11-18 11:28:35,737 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:35,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 11:28:35,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 11:28:35,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:35,820 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 30 treesize of output 34 [2018-11-18 11:28:35,821 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:35,839 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:35,971 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:28:35,972 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 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 11:28:35,980 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:35,984 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 37 treesize of output 46 [2018-11-18 11:28:35,985 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:36,021 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:36,172 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 43 treesize of output 34 [2018-11-18 11:28:36,178 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:36,189 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:28:36,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 28 treesize of output 42 [2018-11-18 11:28:36,191 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:36,215 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:36,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-18 11:28:36,334 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:28:36,536 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:28:36,537 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_6 term size 24 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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 11:28:36,540 INFO L168 Benchmark]: Toolchain (without parser) took 13478.00 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 459.3 MB). Free memory was 957.5 MB in the beginning and 1.2 GB in the end (delta: -268.8 MB). Peak memory consumption was 190.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:36,541 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:28:36,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:36,542 INFO L168 Benchmark]: Boogie Preprocessor took 64.43 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: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:36,542 INFO L168 Benchmark]: RCFGBuilder took 513.06 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: 85.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:36,543 INFO L168 Benchmark]: TraceAbstraction took 12421.03 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 276.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.0 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:36,545 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 476.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.43 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: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 513.06 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: 85.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12421.03 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 276.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.0 MB). Peak memory consumption was 98.3 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_6 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_6 term size 24: 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 11:28:38,137 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:28:38,139 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:28:38,148 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:28:38,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:28:38,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:28:38,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:28:38,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:28:38,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:28:38,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:28:38,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:28:38,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:28:38,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:28:38,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:28:38,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:28:38,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:28:38,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:28:38,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:28:38,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:28:38,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:28:38,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:28:38,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:28:38,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:28:38,165 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:28:38,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:28:38,166 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:28:38,167 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:28:38,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:28:38,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:28:38,170 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:28:38,170 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:28:38,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:28:38,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:28:38,171 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:28:38,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:28:38,172 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:28:38,172 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 11:28:38,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:28:38,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:28:38,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:28:38,185 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:28:38,186 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:28:38,186 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:28:38,186 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:28:38,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:28:38,187 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:28:38,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:28:38,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:28:38,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:28:38,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:28:38,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:28:38,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:28:38,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:28:38,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:28:38,190 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 30390fe155d7f123b603151bf2b8a7453d49cf9d [2018-11-18 11:28:38,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:28:38,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:28:38,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:28:38,243 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:28:38,243 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:28:38,244 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:38,289 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/f832fd9bd/f4e5c2a721cc4652bf683644e71afe52/FLAG62eeb5c2f [2018-11-18 11:28:38,696 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:28:38,697 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:38,708 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/f832fd9bd/f4e5c2a721cc4652bf683644e71afe52/FLAG62eeb5c2f [2018-11-18 11:28:38,719 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/data/f832fd9bd/f4e5c2a721cc4652bf683644e71afe52 [2018-11-18 11:28:38,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:28:38,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:28:38,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:28:38,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:28:38,726 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:28:38,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:38" (1/1) ... [2018-11-18 11:28:38,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e99b006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:38, skipping insertion in model container [2018-11-18 11:28:38,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:28:38" (1/1) ... [2018-11-18 11:28:38,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:28:38,777 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:28:39,198 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:28:39,208 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:28:39,305 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:28:39,406 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:28:39,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39 WrapperNode [2018-11-18 11:28:39,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:28:39,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:28:39,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:28:39,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:28:39,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... [2018-11-18 11:28:39,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:28:39,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:28:39,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:28:39,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:28:39,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 11:28:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 11:28:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 11:28:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 11:28:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 11:28:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 11:28:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 11:28:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 11:28:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 11:28:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 11:28:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 11:28:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 11:28:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 11:28:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 11:28:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 11:28:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2018-11-18 11:28:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2018-11-18 11:28:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2018-11-18 11:28:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2018-11-18 11:28:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2018-11-18 11:28:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2018-11-18 11:28:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2018-11-18 11:28:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2018-11-18 11:28:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2018-11-18 11:28:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2018-11-18 11:28:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2018-11-18 11:28:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2018-11-18 11:28:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2018-11-18 11:28:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 11:28:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 11:28:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:28:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 11:28:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 11:28:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:28:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:28:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:28:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 11:28:40,301 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:28:40,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:40 BoogieIcfgContainer [2018-11-18 11:28:40,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:28:40,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:28:40,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:28:40,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:28:40,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:28:38" (1/3) ... [2018-11-18 11:28:40,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8506405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:40, skipping insertion in model container [2018-11-18 11:28:40,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:28:39" (2/3) ... [2018-11-18 11:28:40,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8506405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:28:40, skipping insertion in model container [2018-11-18 11:28:40,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:28:40" (3/3) ... [2018-11-18 11:28:40,312 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 11:28:40,319 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:28:40,327 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:28:40,338 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:28:40,364 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:28:40,365 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:28:40,365 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:28:40,365 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:28:40,365 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:28:40,365 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:28:40,365 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:28:40,366 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:28:40,366 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:28:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2018-11-18 11:28:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:28:40,388 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:40,389 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:40,391 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:40,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:40,397 INFO L82 PathProgramCache]: Analyzing trace with hash 344600023, now seen corresponding path program 1 times [2018-11-18 11:28:40,401 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:28:40,401 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:40,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:40,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:28:40,484 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 11:28:40,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:28:40,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:40,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:28:40,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:28:40,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:28:40,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:28:40,501 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2018-11-18 11:28:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:40,540 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2018-11-18 11:28:40,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:28:40,541 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 11:28:40,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:40,551 INFO L225 Difference]: With dead ends: 298 [2018-11-18 11:28:40,551 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 11:28:40,555 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:28:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 11:28:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 11:28:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 11:28:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 159 transitions. [2018-11-18 11:28:40,596 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 159 transitions. Word has length 15 [2018-11-18 11:28:40,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:40,596 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 159 transitions. [2018-11-18 11:28:40,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:28:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 159 transitions. [2018-11-18 11:28:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:28:40,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:40,598 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 11:28:40,599 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:40,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:40,599 INFO L82 PathProgramCache]: Analyzing trace with hash 826001747, now seen corresponding path program 1 times [2018-11-18 11:28:40,601 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:28:40,601 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:40,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:40,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:28:40,713 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 11:28:40,713 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:28:40,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:28:40,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:28:40,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:28:40,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:28:40,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:28:40,718 INFO L87 Difference]: Start difference. First operand 138 states and 159 transitions. Second operand 5 states. [2018-11-18 11:28:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:28:40,918 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2018-11-18 11:28:40,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:28:40,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-18 11:28:40,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:28:40,920 INFO L225 Difference]: With dead ends: 140 [2018-11-18 11:28:40,921 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 11:28:40,922 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:28:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 11:28:40,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 11:28:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 11:28:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2018-11-18 11:28:40,941 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 34 [2018-11-18 11:28:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:28:40,943 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2018-11-18 11:28:40,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:28:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2018-11-18 11:28:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 11:28:40,945 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:28:40,945 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:28:40,946 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:28:40,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:28:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1259587791, now seen corresponding path program 1 times [2018-11-18 11:28:40,947 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:28:40,947 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:28:40,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:28:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:28:41,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:28:41,088 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 9 treesize of output 12 [2018-11-18 11:28:41,104 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:41,121 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 11:28:41,122 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 11:28:41,141 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:41,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:41,153 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:27 [2018-11-18 11:28:41,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:41,184 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:41,185 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 11:28:41,186 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:41,225 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 14 treesize of output 7 [2018-11-18 11:28:41,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:41,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:41,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:7 [2018-11-18 11:28:41,333 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 77 treesize of output 48 [2018-11-18 11:28:41,461 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 11:28:41,480 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 11:28:41,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:41,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-18 11:28:41,703 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2018-11-18 11:28:41,709 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:41,713 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 11:28:41,714 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:41,745 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:42,029 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 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-18 11:28:42,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:42,045 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:42,103 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 2 case distinctions, treesize of input 23 treesize of output 44 [2018-11-18 11:28:42,104 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 11:28:42,204 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:42,634 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 42 treesize of output 43 [2018-11-18 11:28:42,638 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 11:28:42,639 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:42,672 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:42,691 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 44 treesize of output 45 [2018-11-18 11:28:42,696 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 11:28:42,697 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:42,731 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:43,037 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 53 [2018-11-18 11:28:43,048 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 39 treesize of output 40 [2018-11-18 11:28:43,048 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:43,138 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 38 treesize of output 37 [2018-11-18 11:28:43,139 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:43,195 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:43,374 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:43,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 11:28:43,457 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:28:43,458 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 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-18 11:28:43,478 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:43,479 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 37 treesize of output 43 [2018-11-18 11:28:43,480 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:43,542 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:44,048 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 11:28:44,055 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:44,056 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 30 treesize of output 34 [2018-11-18 11:28:44,056 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:44,093 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:44,527 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 43 treesize of output 34 [2018-11-18 11:28:44,540 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:44,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 28 treesize of output 42 [2018-11-18 11:28:44,547 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 11:28:44,572 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:28:44,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2018-11-18 11:28:44,869 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:44,876 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:28:44,893 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 2 case distinctions, treesize of input 37 treesize of output 69 [2018-11-18 11:28:44,894 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-18 11:28:45,318 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:45,502 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:28:45,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 11:28:45,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-18 11:28:45,816 INFO L202 ElimStorePlain]: Needed 24 recursive calls to eliminate 4 variables, input treesize:81, output treesize:93 [2018-11-18 11:29:02,014 WARN L180 SmtUtils]: Spent 16.17 s on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2018-11-18 11:29:10,180 WARN L180 SmtUtils]: Spent 8.13 s on a formula simplification that was a NOOP. DAG size: 35 [2018-11-18 11:29:20,334 WARN L180 SmtUtils]: Spent 10.10 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-18 11:29:20,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2018-11-18 11:29:20,465 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 2 case distinctions, treesize of input 55 treesize of output 80 [2018-11-18 11:29:20,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 11:29:20,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:29:21,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 83 [2018-11-18 11:29:21,026 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:21,287 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 103 [2018-11-18 11:29:21,289 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-11-18 11:29:22,530 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:22,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 67 [2018-11-18 11:29:22,605 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-11-18 11:29:23,398 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:23,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 105 [2018-11-18 11:29:23,627 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 11:29:28,924 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 6 xjuncts. [2018-11-18 11:29:31,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 19 dim-0 vars, and 8 xjuncts. [2018-11-18 11:29:31,421 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:139, output treesize:503 [2018-11-18 11:29:36,924 WARN L180 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 154 DAG size of output: 60 [2018-11-18 11:29:36,954 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:36,956 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:36,956 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 74 treesize of output 66 [2018-11-18 11:29:36,957 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:37,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,188 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,189 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 76 treesize of output 67 [2018-11-18 11:29:37,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:37,410 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,417 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 83 treesize of output 74 [2018-11-18 11:29:37,417 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:37,624 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,625 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,626 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 57 treesize of output 49 [2018-11-18 11:29:37,626 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:37,832 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,834 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:37,835 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 78 treesize of output 70 [2018-11-18 11:29:37,835 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:38,000 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:38,004 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:38,005 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:38,006 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 59 treesize of output 50 [2018-11-18 11:29:38,007 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:38,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-18 11:29:38,131 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:431, output treesize:180 [2018-11-18 11:29:38,790 WARN L180 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 11:29:42,306 WARN L180 SmtUtils]: Spent 3.45 s on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 11:29:42,546 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 11:29:42,566 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 50 treesize of output 30 [2018-11-18 11:29:42,571 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 27 [2018-11-18 11:29:42,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:42,588 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:29:42,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2018-11-18 11:29:42,589 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 11:29:42,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:29:42,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:29:42,608 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:192, output treesize:4 [2018-11-18 11:29:42,653 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 11:29:42,653 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:29:42,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:29:42,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 11:29:42,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 11:29:42,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 11:29:42,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2018-11-18 11:29:42,655 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand 15 states. [2018-11-18 11:29:55,562 WARN L180 SmtUtils]: Spent 12.23 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2018-11-18 11:30:07,931 WARN L180 SmtUtils]: Spent 12.27 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2018-11-18 11:30:24,248 WARN L180 SmtUtils]: Spent 16.20 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-11-18 11:30:36,020 WARN L180 SmtUtils]: Spent 11.61 s on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-11-18 11:30:37,689 WARN L180 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-11-18 11:30:40,097 WARN L180 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2018-11-18 11:30:41,356 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2018-11-18 11:30:43,858 WARN L180 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-11-18 11:30:56,432 WARN L180 SmtUtils]: Spent 12.43 s on a formula simplification. DAG size of input: 151 DAG size of output: 151 [2018-11-18 11:30:59,228 WARN L180 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2018-11-18 11:31:01,332 WARN L180 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 154 DAG size of output: 154 [2018-11-18 11:31:09,576 WARN L180 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2018-11-18 11:31:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:31:13,317 INFO L93 Difference]: Finished difference Result 257 states and 304 transitions. [2018-11-18 11:31:13,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 11:31:13,318 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2018-11-18 11:31:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:31:13,321 INFO L225 Difference]: With dead ends: 257 [2018-11-18 11:31:13,321 INFO L226 Difference]: Without dead ends: 251 [2018-11-18 11:31:13,321 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 124.9s TimeCoverageRelationStatistics Valid=159, Invalid=708, Unknown=3, NotChecked=0, Total=870 [2018-11-18 11:31:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-18 11:31:13,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 215. [2018-11-18 11:31:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-18 11:31:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 253 transitions. [2018-11-18 11:31:13,358 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 253 transitions. Word has length 37 [2018-11-18 11:31:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:31:13,358 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 253 transitions. [2018-11-18 11:31:13,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 11:31:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 253 transitions. [2018-11-18 11:31:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 11:31:13,360 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:31:13,360 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:31:13,360 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:31:13,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:31:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1024871839, now seen corresponding path program 1 times [2018-11-18 11:31:13,361 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:31:13,361 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67dd23d9-1baa-4e92-8ba6-a080d307beb6/bin-2019/uautomizer/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 11:31:13,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:31:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:31:13,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:31:13,468 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 9 treesize of output 12 [2018-11-18 11:31:13,483 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,488 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 11:31:13,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 11:31:13,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:31:13,622 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 24 treesize of output 21 [2018-11-18 11:31:13,625 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 21 treesize of output 24 [2018-11-18 11:31:13,630 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,631 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 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 11:31:13,637 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,637 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 11:31:13,643 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,644 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 23 treesize of output 26 [2018-11-18 11:31:13,644 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,659 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,671 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,681 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,689 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,732 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 24 treesize of output 21 [2018-11-18 11:31:13,734 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 21 treesize of output 24 [2018-11-18 11:31:13,738 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,738 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 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 11:31:13,741 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,744 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 11:31:13,747 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,749 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 23 treesize of output 26 [2018-11-18 11:31:13,749 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,754 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,759 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,764 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,769 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:31:13,786 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 11:31:13,829 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 11:31:13,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,878 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,879 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,879 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 57 treesize of output 49 [2018-11-18 11:31:13,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,929 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 49 treesize of output 45 [2018-11-18 11:31:13,932 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,933 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 11:31:13,933 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,945 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,978 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 33 treesize of output 29 [2018-11-18 11:31:13,980 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:13,981 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 11:31:13,981 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:13,989 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,017 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 45 treesize of output 41 [2018-11-18 11:31:14,019 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:14,020 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 11:31:14,020 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,031 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,054 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 29 treesize of output 25 [2018-11-18 11:31:14,057 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:14,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 11:31:14,057 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,063 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,074 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:113, output treesize:13 [2018-11-18 11:31:14,167 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 77 treesize of output 48 [2018-11-18 11:31:14,273 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 11:31:14,289 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 11:31:14,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 11:31:14,420 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 11:31:14,426 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:14,427 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 30 treesize of output 34 [2018-11-18 11:31:14,427 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,458 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,889 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:31:14,890 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 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 11:31:14,899 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:14,906 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 37 treesize of output 46 [2018-11-18 11:31:14,906 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 11:31:14,938 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:31:15,370 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 44 treesize of output 37 [2018-11-18 11:31:15,375 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:15,382 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:31:15,396 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 2 case distinctions, treesize of input 21 treesize of output 53 [2018-11-18 11:31:15,396 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 11:31:15,469 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 11:31:15,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-18 11:31:15,950 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:31:16,152 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:31:16,152 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_33 term size 24 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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 11:31:16,154 INFO L168 Benchmark]: Toolchain (without parser) took 157432.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.8 MB). Free memory was 938.5 MB in the beginning and 881.2 MB in the end (delta: 57.3 MB). Peak memory consumption was 356.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:31:16,155 INFO L168 Benchmark]: CDTParser took 0.23 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 11:31:16,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:31:16,155 INFO L168 Benchmark]: Boogie Preprocessor took 87.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:31:16,155 INFO L168 Benchmark]: RCFGBuilder took 807.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:31:16,155 INFO L168 Benchmark]: TraceAbstraction took 155849.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 990.9 MB in the beginning and 881.2 MB in the end (delta: 109.7 MB). Peak memory consumption was 265.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:31:16,157 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 684.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 807.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 155849.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 990.9 MB in the beginning and 881.2 MB in the end (delta: 109.7 MB). Peak memory consumption was 265.4 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_33 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_33 term size 24: 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...