./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:45:23,652 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:45:23,653 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:45:23,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:45:23,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:45:23,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:45:23,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:45:23,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:45:23,663 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:45:23,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:45:23,665 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:45:23,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:45:23,665 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:45:23,666 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:45:23,667 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:45:23,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:45:23,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:45:23,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:45:23,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:45:23,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:45:23,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:45:23,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:45:23,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:45:23,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:45:23,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:45:23,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:45:23,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:45:23,676 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:45:23,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:45:23,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:45:23,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:45:23,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:45:23,678 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:45:23,678 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:45:23,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:45:23,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:45:23,679 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 09:45:23,688 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:45:23,688 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:45:23,689 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:45:23,689 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:45:23,689 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:45:23,689 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:45:23,689 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 09:45:23,690 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:45:23,691 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:45:23,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:45:23,692 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:45:23,692 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:45:23,692 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:45:23,692 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:45:23,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-11-18 09:45:23,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:45:23,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:45:23,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:45:23,728 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:45:23,728 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:45:23,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:23,774 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/9686ea0d7/b83a4451483748e283e2c841e065c636/FLAGf2cd210f8 [2018-11-18 09:45:24,136 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:45:24,136 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:24,144 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/9686ea0d7/b83a4451483748e283e2c841e065c636/FLAGf2cd210f8 [2018-11-18 09:45:24,532 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/9686ea0d7/b83a4451483748e283e2c841e065c636 [2018-11-18 09:45:24,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:45:24,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:45:24,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:24,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:45:24,538 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:45:24,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430aaa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24, skipping insertion in model container [2018-11-18 09:45:24,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:45:24,577 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:45:24,776 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:24,783 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:45:24,817 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:24,886 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:45:24,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24 WrapperNode [2018-11-18 09:45:24,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:24,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:45:24,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:45:24,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:45:24,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... [2018-11-18 09:45:24,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:45:24,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:45:24,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:45:24,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:45:24,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:45:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:45:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:45:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 09:45:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 09:45:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 09:45:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 09:45:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 09:45:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 09:45:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 09:45:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 09:45:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 09:45:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 09:45:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 09:45:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:45:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 09:45:25,389 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:45:25,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:25 BoogieIcfgContainer [2018-11-18 09:45:25,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:45:25,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:45:25,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:45:25,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:45:25,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:45:24" (1/3) ... [2018-11-18 09:45:25,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efe1263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:45:25, skipping insertion in model container [2018-11-18 09:45:25,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:24" (2/3) ... [2018-11-18 09:45:25,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efe1263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:45:25, skipping insertion in model container [2018-11-18 09:45:25,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:25" (3/3) ... [2018-11-18 09:45:25,395 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:25,401 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:45:25,407 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-11-18 09:45:25,419 INFO L257 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2018-11-18 09:45:25,435 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:45:25,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:45:25,436 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 09:45:25,436 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:45:25,436 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:45:25,436 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:45:25,436 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:45:25,436 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:45:25,436 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:45:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2018-11-18 09:45:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 09:45:25,456 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:25,456 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:25,458 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:25,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:25,461 INFO L82 PathProgramCache]: Analyzing trace with hash -803775247, now seen corresponding path program 1 times [2018-11-18 09:45:25,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:25,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:25,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:25,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:25,563 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 09:45:25,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:25,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:25,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:25,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:25,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:25,576 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 3 states. [2018-11-18 09:45:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:25,733 INFO L93 Difference]: Finished difference Result 182 states and 189 transitions. [2018-11-18 09:45:25,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:25,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 09:45:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:25,741 INFO L225 Difference]: With dead ends: 182 [2018-11-18 09:45:25,741 INFO L226 Difference]: Without dead ends: 178 [2018-11-18 09:45:25,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-11-18 09:45:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 153. [2018-11-18 09:45:25,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-11-18 09:45:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 158 transitions. [2018-11-18 09:45:25,774 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 158 transitions. Word has length 7 [2018-11-18 09:45:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:25,774 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 158 transitions. [2018-11-18 09:45:25,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 158 transitions. [2018-11-18 09:45:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 09:45:25,775 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:25,775 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:25,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:25,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:25,776 INFO L82 PathProgramCache]: Analyzing trace with hash -803775246, now seen corresponding path program 1 times [2018-11-18 09:45:25,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:25,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:25,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:25,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:25,817 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 09:45:25,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:25,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:25,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:25,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:25,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:25,819 INFO L87 Difference]: Start difference. First operand 153 states and 158 transitions. Second operand 3 states. [2018-11-18 09:45:25,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:25,912 INFO L93 Difference]: Finished difference Result 150 states and 155 transitions. [2018-11-18 09:45:25,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:25,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 09:45:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:25,913 INFO L225 Difference]: With dead ends: 150 [2018-11-18 09:45:25,913 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 09:45:25,913 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 09:45:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-11-18 09:45:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-18 09:45:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 155 transitions. [2018-11-18 09:45:25,920 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 155 transitions. Word has length 7 [2018-11-18 09:45:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:25,921 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 155 transitions. [2018-11-18 09:45:25,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 155 transitions. [2018-11-18 09:45:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:45:25,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:25,921 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:25,922 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:25,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:25,922 INFO L82 PathProgramCache]: Analyzing trace with hash 172114549, now seen corresponding path program 1 times [2018-11-18 09:45:25,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:25,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:25,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:25,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:25,958 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 09:45:25,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:25,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:25,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:25,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:25,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:25,960 INFO L87 Difference]: Start difference. First operand 150 states and 155 transitions. Second operand 3 states. [2018-11-18 09:45:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,032 INFO L93 Difference]: Finished difference Result 150 states and 155 transitions. [2018-11-18 09:45:26,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:26,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 09:45:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,033 INFO L225 Difference]: With dead ends: 150 [2018-11-18 09:45:26,033 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 09:45:26,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 09:45:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2018-11-18 09:45:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 09:45:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2018-11-18 09:45:26,039 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 11 [2018-11-18 09:45:26,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,039 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2018-11-18 09:45:26,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2018-11-18 09:45:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:45:26,039 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,040 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:26,040 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash 172114550, now seen corresponding path program 1 times [2018-11-18 09:45:26,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:26,065 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 09:45:26,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:26,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:26,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:26,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:26,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:26,067 INFO L87 Difference]: Start difference. First operand 146 states and 153 transitions. Second operand 3 states. [2018-11-18 09:45:26,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,143 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2018-11-18 09:45:26,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:26,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 09:45:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,144 INFO L225 Difference]: With dead ends: 159 [2018-11-18 09:45:26,144 INFO L226 Difference]: Without dead ends: 159 [2018-11-18 09:45:26,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-18 09:45:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 150. [2018-11-18 09:45:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-18 09:45:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 157 transitions. [2018-11-18 09:45:26,149 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 157 transitions. Word has length 11 [2018-11-18 09:45:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,149 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 157 transitions. [2018-11-18 09:45:26,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 157 transitions. [2018-11-18 09:45:26,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:45:26,150 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,150 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:26,150 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,151 INFO L82 PathProgramCache]: Analyzing trace with hash -685121821, now seen corresponding path program 1 times [2018-11-18 09:45:26,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:26,199 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 09:45:26,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:26,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:45:26,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:45:26,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:45:26,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:45:26,200 INFO L87 Difference]: Start difference. First operand 150 states and 157 transitions. Second operand 4 states. [2018-11-18 09:45:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,309 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2018-11-18 09:45:26,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:26,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-18 09:45:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,311 INFO L225 Difference]: With dead ends: 153 [2018-11-18 09:45:26,311 INFO L226 Difference]: Without dead ends: 153 [2018-11-18 09:45:26,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-11-18 09:45:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 138. [2018-11-18 09:45:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 09:45:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2018-11-18 09:45:26,316 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 18 [2018-11-18 09:45:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,317 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2018-11-18 09:45:26,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:45:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2018-11-18 09:45:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:45:26,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,318 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:26,318 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash -685121820, now seen corresponding path program 1 times [2018-11-18 09:45:26,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:26,373 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 09:45:26,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:26,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:45:26,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:45:26,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:45:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:26,374 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand 6 states. [2018-11-18 09:45:26,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,555 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2018-11-18 09:45:26,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:26,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-18 09:45:26,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,556 INFO L225 Difference]: With dead ends: 174 [2018-11-18 09:45:26,556 INFO L226 Difference]: Without dead ends: 174 [2018-11-18 09:45:26,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:45:26,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-11-18 09:45:26,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 148. [2018-11-18 09:45:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 09:45:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 160 transitions. [2018-11-18 09:45:26,564 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 160 transitions. Word has length 18 [2018-11-18 09:45:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,564 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 160 transitions. [2018-11-18 09:45:26,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:45:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 160 transitions. [2018-11-18 09:45:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 09:45:26,565 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,565 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] [2018-11-18 09:45:26,565 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1272073466, now seen corresponding path program 1 times [2018-11-18 09:45:26,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:26,606 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 09:45:26,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:26,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:26,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:26,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:26,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:26,608 INFO L87 Difference]: Start difference. First operand 148 states and 160 transitions. Second operand 5 states. [2018-11-18 09:45:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,755 INFO L93 Difference]: Finished difference Result 197 states and 213 transitions. [2018-11-18 09:45:26,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:26,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-18 09:45:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,756 INFO L225 Difference]: With dead ends: 197 [2018-11-18 09:45:26,756 INFO L226 Difference]: Without dead ends: 197 [2018-11-18 09:45:26,756 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 09:45:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-11-18 09:45:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 147. [2018-11-18 09:45:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-18 09:45:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2018-11-18 09:45:26,759 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 20 [2018-11-18 09:45:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,760 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2018-11-18 09:45:26,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2018-11-18 09:45:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 09:45:26,760 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,760 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] [2018-11-18 09:45:26,760 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1272073465, now seen corresponding path program 1 times [2018-11-18 09:45:26,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:26,823 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 09:45:26,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:26,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:26,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:26,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:26,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:26,824 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 5 states. [2018-11-18 09:45:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:26,974 INFO L93 Difference]: Finished difference Result 219 states and 236 transitions. [2018-11-18 09:45:26,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:26,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-18 09:45:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:26,975 INFO L225 Difference]: With dead ends: 219 [2018-11-18 09:45:26,975 INFO L226 Difference]: Without dead ends: 219 [2018-11-18 09:45:26,975 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-11-18 09:45:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 146. [2018-11-18 09:45:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 09:45:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 156 transitions. [2018-11-18 09:45:26,978 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 156 transitions. Word has length 20 [2018-11-18 09:45:26,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:26,979 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 156 transitions. [2018-11-18 09:45:26,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2018-11-18 09:45:26,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 09:45:26,979 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:26,979 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] [2018-11-18 09:45:26,980 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:26,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:26,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1334386808, now seen corresponding path program 1 times [2018-11-18 09:45:26,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:26,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:26,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:26,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:27,068 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 09:45:27,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:27,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 09:45:27,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:45:27,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:45:27,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:45:27,069 INFO L87 Difference]: Start difference. First operand 146 states and 156 transitions. Second operand 9 states. [2018-11-18 09:45:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:27,350 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2018-11-18 09:45:27,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:45:27,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-18 09:45:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:27,351 INFO L225 Difference]: With dead ends: 159 [2018-11-18 09:45:27,351 INFO L226 Difference]: Without dead ends: 159 [2018-11-18 09:45:27,352 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:45:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-18 09:45:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 145. [2018-11-18 09:45:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 09:45:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2018-11-18 09:45:27,356 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 24 [2018-11-18 09:45:27,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:27,356 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2018-11-18 09:45:27,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:45:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2018-11-18 09:45:27,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 09:45:27,357 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:27,357 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] [2018-11-18 09:45:27,359 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:27,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:27,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1334386807, now seen corresponding path program 1 times [2018-11-18 09:45:27,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:27,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:27,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:27,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:27,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:27,493 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 09:45:27,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:27,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:45:27,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:45:27,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:45:27,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:45:27,494 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand 10 states. [2018-11-18 09:45:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:27,982 INFO L93 Difference]: Finished difference Result 174 states and 185 transitions. [2018-11-18 09:45:27,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:45:27,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2018-11-18 09:45:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:27,983 INFO L225 Difference]: With dead ends: 174 [2018-11-18 09:45:27,983 INFO L226 Difference]: Without dead ends: 174 [2018-11-18 09:45:27,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-11-18 09:45:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-11-18 09:45:27,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 150. [2018-11-18 09:45:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-18 09:45:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2018-11-18 09:45:27,986 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 24 [2018-11-18 09:45:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:27,987 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2018-11-18 09:45:27,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:45:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2018-11-18 09:45:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:45:27,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:27,987 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] [2018-11-18 09:45:27,988 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:27,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:27,988 INFO L82 PathProgramCache]: Analyzing trace with hash -560610446, now seen corresponding path program 1 times [2018-11-18 09:45:27,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:27,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:27,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:27,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:27,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:28,025 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 09:45:28,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:28,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:28,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:28,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:28,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:28,026 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand 5 states. [2018-11-18 09:45:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:28,211 INFO L93 Difference]: Finished difference Result 225 states and 242 transitions. [2018-11-18 09:45:28,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:28,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 09:45:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:28,213 INFO L225 Difference]: With dead ends: 225 [2018-11-18 09:45:28,213 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 09:45:28,213 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 09:45:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 09:45:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 149. [2018-11-18 09:45:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 09:45:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 159 transitions. [2018-11-18 09:45:28,217 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 159 transitions. Word has length 31 [2018-11-18 09:45:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:28,217 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 159 transitions. [2018-11-18 09:45:28,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2018-11-18 09:45:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:45:28,218 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:28,218 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] [2018-11-18 09:45:28,218 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:28,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:28,218 INFO L82 PathProgramCache]: Analyzing trace with hash -560610445, now seen corresponding path program 1 times [2018-11-18 09:45:28,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:28,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:28,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:28,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:28,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:28,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:28,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:28,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:28,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:28,276 INFO L87 Difference]: Start difference. First operand 149 states and 159 transitions. Second operand 5 states. [2018-11-18 09:45:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:28,477 INFO L93 Difference]: Finished difference Result 247 states and 266 transitions. [2018-11-18 09:45:28,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:28,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 09:45:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:28,479 INFO L225 Difference]: With dead ends: 247 [2018-11-18 09:45:28,479 INFO L226 Difference]: Without dead ends: 247 [2018-11-18 09:45:28,479 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:28,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-18 09:45:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 148. [2018-11-18 09:45:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 09:45:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-11-18 09:45:28,484 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 31 [2018-11-18 09:45:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:28,484 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-11-18 09:45:28,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-11-18 09:45:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:45:28,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:28,485 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] [2018-11-18 09:45:28,485 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:28,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:28,486 INFO L82 PathProgramCache]: Analyzing trace with hash -309573995, now seen corresponding path program 1 times [2018-11-18 09:45:28,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:28,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:28,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:28,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:28,536 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 09:45:28,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:28,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:45:28,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:45:28,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:45:28,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:28,537 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 6 states. [2018-11-18 09:45:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:28,644 INFO L93 Difference]: Finished difference Result 175 states and 186 transitions. [2018-11-18 09:45:28,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:45:28,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 09:45:28,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:28,645 INFO L225 Difference]: With dead ends: 175 [2018-11-18 09:45:28,645 INFO L226 Difference]: Without dead ends: 175 [2018-11-18 09:45:28,645 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:45:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-11-18 09:45:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 148. [2018-11-18 09:45:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 09:45:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2018-11-18 09:45:28,648 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 31 [2018-11-18 09:45:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:28,648 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2018-11-18 09:45:28,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:45:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2018-11-18 09:45:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 09:45:28,649 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:28,649 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:28,649 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:28,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:28,650 INFO L82 PathProgramCache]: Analyzing trace with hash 72112023, now seen corresponding path program 1 times [2018-11-18 09:45:28,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:28,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:28,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:28,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:28,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:45:28,728 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:28,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:28,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:28,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:28,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:28,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,832 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:28,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:28,858 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,860 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,864 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,864 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2018-11-18 09:45:28,873 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 26 treesize of output 21 [2018-11-18 09:45:28,882 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:28,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 09:45:28,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,901 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 26 treesize of output 21 [2018-11-18 09:45:28,909 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:28,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 09:45:28,910 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,915 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,922 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:51, output treesize:33 [2018-11-18 09:45:28,959 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 24 treesize of output 18 [2018-11-18 09:45:28,963 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:28,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-18 09:45:28,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,976 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 24 treesize of output 18 [2018-11-18 09:45:28,978 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:28,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-18 09:45:28,978 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,982 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:28,986 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2018-11-18 09:45:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:29,022 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:45:29,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2018-11-18 09:45:29,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 09:45:29,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 09:45:29,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:29,023 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 8 states. [2018-11-18 09:45:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:29,244 INFO L93 Difference]: Finished difference Result 213 states and 226 transitions. [2018-11-18 09:45:29,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 09:45:29,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-18 09:45:29,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:29,245 INFO L225 Difference]: With dead ends: 213 [2018-11-18 09:45:29,245 INFO L226 Difference]: Without dead ends: 213 [2018-11-18 09:45:29,246 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-18 09:45:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-11-18 09:45:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 167. [2018-11-18 09:45:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-18 09:45:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 178 transitions. [2018-11-18 09:45:29,249 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 178 transitions. Word has length 34 [2018-11-18 09:45:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:29,250 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 178 transitions. [2018-11-18 09:45:29,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 09:45:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 178 transitions. [2018-11-18 09:45:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 09:45:29,250 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:29,251 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 09:45:29,251 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:29,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:29,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1314320757, now seen corresponding path program 1 times [2018-11-18 09:45:29,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:29,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:29,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:29,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:29,349 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 09:45:29,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:29,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 09:45:29,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:45:29,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:45:29,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:45:29,349 INFO L87 Difference]: Start difference. First operand 167 states and 178 transitions. Second operand 9 states. [2018-11-18 09:45:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:29,622 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2018-11-18 09:45:29,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:45:29,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-11-18 09:45:29,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:29,623 INFO L225 Difference]: With dead ends: 163 [2018-11-18 09:45:29,623 INFO L226 Difference]: Without dead ends: 163 [2018-11-18 09:45:29,623 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:45:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-11-18 09:45:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 141. [2018-11-18 09:45:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-18 09:45:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 151 transitions. [2018-11-18 09:45:29,626 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 151 transitions. Word has length 35 [2018-11-18 09:45:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:29,626 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 151 transitions. [2018-11-18 09:45:29,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:45:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 151 transitions. [2018-11-18 09:45:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 09:45:29,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:29,627 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 09:45:29,627 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:29,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:29,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1314320756, now seen corresponding path program 1 times [2018-11-18 09:45:29,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:29,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:29,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:29,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:29,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:29,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:45:29,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 09:45:29,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 09:45:29,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:29,686 INFO L87 Difference]: Start difference. First operand 141 states and 151 transitions. Second operand 8 states. [2018-11-18 09:45:29,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:29,883 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2018-11-18 09:45:29,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:45:29,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-11-18 09:45:29,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:29,884 INFO L225 Difference]: With dead ends: 141 [2018-11-18 09:45:29,884 INFO L226 Difference]: Without dead ends: 141 [2018-11-18 09:45:29,885 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-11-18 09:45:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-18 09:45:29,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2018-11-18 09:45:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-18 09:45:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2018-11-18 09:45:29,887 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 35 [2018-11-18 09:45:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:29,887 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2018-11-18 09:45:29,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 09:45:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2018-11-18 09:45:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 09:45:29,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:29,888 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:29,888 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:29,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:29,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1346274053, now seen corresponding path program 1 times [2018-11-18 09:45:29,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:29,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:29,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:29,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:29,957 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 09:45:29,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:29,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:45:29,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:29,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:29,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:29,958 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 5 states. [2018-11-18 09:45:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:30,028 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-11-18 09:45:30,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:30,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-18 09:45:30,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:30,029 INFO L225 Difference]: With dead ends: 146 [2018-11-18 09:45:30,029 INFO L226 Difference]: Without dead ends: 146 [2018-11-18 09:45:30,029 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-18 09:45:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2018-11-18 09:45:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 09:45:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2018-11-18 09:45:30,032 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 36 [2018-11-18 09:45:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:30,032 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2018-11-18 09:45:30,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2018-11-18 09:45:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 09:45:30,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:30,033 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:30,033 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:30,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:30,033 INFO L82 PathProgramCache]: Analyzing trace with hash 805796271, now seen corresponding path program 1 times [2018-11-18 09:45:30,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:30,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:30,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:30,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:45:30,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:30,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:45:30,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:45:30,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:45:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:30,065 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand 6 states. [2018-11-18 09:45:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:30,170 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2018-11-18 09:45:30,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:45:30,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-11-18 09:45:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:30,171 INFO L225 Difference]: With dead ends: 152 [2018-11-18 09:45:30,171 INFO L226 Difference]: Without dead ends: 152 [2018-11-18 09:45:30,172 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:45:30,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-11-18 09:45:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 139. [2018-11-18 09:45:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 09:45:30,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 146 transitions. [2018-11-18 09:45:30,175 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 146 transitions. Word has length 37 [2018-11-18 09:45:30,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:30,175 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 146 transitions. [2018-11-18 09:45:30,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:45:30,175 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 146 transitions. [2018-11-18 09:45:30,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 09:45:30,176 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:30,176 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:30,176 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:30,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:30,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1752095974, now seen corresponding path program 1 times [2018-11-18 09:45:30,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:30,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:30,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:30,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:30,239 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:45:30,239 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:45:30,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:30,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:30,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 09:45:30,279 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 09:45:30,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,283 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-18 09:45:30,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 09:45:30,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 09:45:30,288 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-18 09:45:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:45:30,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:45:30,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2018-11-18 09:45:30,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:45:30,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:45:30,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:45:30,316 INFO L87 Difference]: Start difference. First operand 139 states and 146 transitions. Second operand 9 states. [2018-11-18 09:45:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:30,518 INFO L93 Difference]: Finished difference Result 221 states and 232 transitions. [2018-11-18 09:45:30,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:45:30,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-11-18 09:45:30,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:30,520 INFO L225 Difference]: With dead ends: 221 [2018-11-18 09:45:30,520 INFO L226 Difference]: Without dead ends: 221 [2018-11-18 09:45:30,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:45:30,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-18 09:45:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 136. [2018-11-18 09:45:30,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 09:45:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-11-18 09:45:30,523 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 42 [2018-11-18 09:45:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:30,523 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-11-18 09:45:30,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:45:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-11-18 09:45:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 09:45:30,524 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:30,524 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:30,525 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:30,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:30,525 INFO L82 PathProgramCache]: Analyzing trace with hash 496432532, now seen corresponding path program 1 times [2018-11-18 09:45:30,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:30,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:30,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:30,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:30,639 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:45:30,639 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:45:30,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:30,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:30,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 09:45:30,717 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 09:45:30,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,723 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,723 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-18 09:45:30,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 09:45:30,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 09:45:30,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,803 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 24 treesize of output 18 [2018-11-18 09:45:30,806 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:30,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-18 09:45:30,807 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,810 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,813 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:30,813 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:10 [2018-11-18 09:45:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:30,868 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:45:30,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 17 [2018-11-18 09:45:30,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:45:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:45:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-11-18 09:45:30,869 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 17 states. [2018-11-18 09:45:31,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:31,335 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2018-11-18 09:45:31,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 09:45:31,335 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2018-11-18 09:45:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:31,336 INFO L225 Difference]: With dead ends: 191 [2018-11-18 09:45:31,336 INFO L226 Difference]: Without dead ends: 191 [2018-11-18 09:45:31,336 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2018-11-18 09:45:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-11-18 09:45:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 149. [2018-11-18 09:45:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 09:45:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 156 transitions. [2018-11-18 09:45:31,339 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 156 transitions. Word has length 44 [2018-11-18 09:45:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:31,339 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 156 transitions. [2018-11-18 09:45:31,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:45:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 156 transitions. [2018-11-18 09:45:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 09:45:31,340 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:31,340 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:31,340 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2018-11-18 09:45:31,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:31,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1790461231, now seen corresponding path program 1 times [2018-11-18 09:45:31,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:31,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:31,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:31,370 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:45:31,385 WARN L387 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-18 09:45:31,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:45:31 BoogieIcfgContainer [2018-11-18 09:45:31,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:45:31,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:45:31,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:45:31,403 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:45:31,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:25" (3/4) ... [2018-11-18 09:45:31,408 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:45:31,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:45:31,409 INFO L168 Benchmark]: Toolchain (without parser) took 6875.11 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -102.9 MB). Peak memory consumption was 227.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:31,411 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 09:45:31,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -204.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:31,411 INFO L168 Benchmark]: Boogie Preprocessor took 37.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:31,412 INFO L168 Benchmark]: RCFGBuilder took 465.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:31,412 INFO L168 Benchmark]: TraceAbstraction took 6012.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 182.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:31,413 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:45:31,418 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 351.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -204.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 465.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6012.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 182.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 985]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 985. Possible FailurePath: [L987] EXPR, FCALL malloc(sizeof(struct TSLL)) [L987] struct TSLL* null = malloc(sizeof(struct TSLL)); VAL [malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L988] FCALL null->next = ((void*)0) VAL [malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L989] FCALL null->prev = ((void*)0) VAL [malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L990] FCALL null->colour = BLACK VAL [malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); VAL [list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L993] FCALL list->next = null VAL [list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L994] FCALL list->prev = null VAL [list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L995] FCALL list->colour = BLACK VAL [list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L997] struct TSLL* end = list; VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1030] COND FALSE !(!(null != end)) VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1030] COND FALSE !(0) VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1031] EXPR, FCALL end->colour VAL [end={14:0}, end->colour=1, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1031] COND FALSE !(!(BLACK == end->colour)) [L1031] COND FALSE !(0) VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1032] COND TRUE null != end VAL [end={14:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1034] EXPR, FCALL end->colour VAL [end={14:0}, end->colour=1, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1034] COND FALSE !(RED == end->colour) [L1041] EXPR, FCALL end->next VAL [end={14:0}, end->next={15:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1041] end = end->next [L1032] COND FALSE !(null != end) VAL [end={15:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1045] COND TRUE null != list VAL [end={15:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1047] EXPR, FCALL list->colour VAL [end={15:0}, list={14:0}, list->colour=1, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1047] COND FALSE !(RED == list->colour) [L1056] EXPR, FCALL list->next VAL [end={15:0}, list={14:0}, list->next={15:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1056] end = list->next [L1057] free(list) VAL [end={15:0}, list={14:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1057] free(list) [L1057] FCALL free(list) [L1058] list = end VAL [end={15:0}, list={15:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1045] COND FALSE !(null != list) VAL [end={15:0}, list={15:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] [L1062] return 0; VAL [\result=0, end={15:0}, list={15:0}, malloc(sizeof(struct TSLL))={14:0}, malloc(sizeof(struct TSLL))={15:0}, null={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 159 locations, 67 error locations. UNSAFE Result, 5.9s OverallTime, 21 OverallIterations, 2 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1941 SDtfs, 3172 SDslu, 4232 SDs, 0 SdLazy, 5335 SolverSat, 257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 128 SyntacticMatches, 12 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 658 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 681 NumberOfCodeBlocks, 681 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 613 ConstructedInterpolants, 0 QuantifiedInterpolants, 139368 SizeOfPredicates, 27 NumberOfNonLiveVariables, 474 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 8/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 09:45:32,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:45:32,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:45:32,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:45:32,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:45:32,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:45:32,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:45:32,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:45:32,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:45:32,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:45:32,821 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:45:32,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:45:32,822 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:45:32,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:45:32,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:45:32,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:45:32,824 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:45:32,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:45:32,827 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:45:32,828 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:45:32,829 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:45:32,830 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:45:32,832 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:45:32,832 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:45:32,832 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:45:32,833 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:45:32,834 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:45:32,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:45:32,835 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:45:32,836 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:45:32,836 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:45:32,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:45:32,837 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:45:32,837 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:45:32,838 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:45:32,838 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:45:32,838 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-18 09:45:32,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:45:32,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:45:32,850 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:45:32,850 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:45:32,850 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:45:32,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:45:32,850 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:45:32,850 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:45:32,851 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:45:32,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:45:32,852 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:45:32,852 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:45:32,853 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-11-18 09:45:32,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:45:32,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:45:32,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:45:32,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:45:32,891 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:45:32,891 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:32,925 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/35dd2cbbb/ab9d664a87074440b6ff1b1d6159aa9c/FLAGa4e743ee7 [2018-11-18 09:45:33,354 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:45:33,355 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:33,361 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/35dd2cbbb/ab9d664a87074440b6ff1b1d6159aa9c/FLAGa4e743ee7 [2018-11-18 09:45:33,368 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/data/35dd2cbbb/ab9d664a87074440b6ff1b1d6159aa9c [2018-11-18 09:45:33,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:45:33,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:45:33,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:33,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:45:33,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:45:33,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34424e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33, skipping insertion in model container [2018-11-18 09:45:33,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:45:33,416 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:45:33,640 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:33,649 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:45:33,687 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:33,763 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:45:33,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33 WrapperNode [2018-11-18 09:45:33,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:33,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:45:33,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:45:33,764 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:45:33,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... [2018-11-18 09:45:33,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:45:33,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:45:33,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:45:33,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:45:33,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:45:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:45:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:45:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 09:45:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 09:45:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 09:45:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 09:45:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 09:45:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 09:45:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 09:45:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 09:45:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 09:45:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 09:45:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 09:45:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 09:45:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 09:45:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 09:45:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:45:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:45:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 09:45:34,399 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:45:34,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:34 BoogieIcfgContainer [2018-11-18 09:45:34,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:45:34,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:45:34,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:45:34,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:45:34,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:45:33" (1/3) ... [2018-11-18 09:45:34,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9b9302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:45:34, skipping insertion in model container [2018-11-18 09:45:34,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:33" (2/3) ... [2018-11-18 09:45:34,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9b9302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:45:34, skipping insertion in model container [2018-11-18 09:45:34,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:34" (3/3) ... [2018-11-18 09:45:34,405 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 09:45:34,411 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:45:34,416 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-11-18 09:45:34,425 INFO L257 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2018-11-18 09:45:34,442 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:45:34,442 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:45:34,442 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 09:45:34,443 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:45:34,443 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:45:34,443 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:45:34,443 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:45:34,443 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:45:34,443 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:45:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-11-18 09:45:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 09:45:34,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:34,464 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:34,466 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:34,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1716123183, now seen corresponding path program 1 times [2018-11-18 09:45:34,472 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:34,473 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:34,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:34,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:34,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:34,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:34,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:34,559 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:34,576 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 09:45:34,576 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:34,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:34,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:34,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:34,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:34,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:34,591 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2018-11-18 09:45:34,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:34,826 INFO L93 Difference]: Finished difference Result 180 states and 187 transitions. [2018-11-18 09:45:34,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:34,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 09:45:34,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:34,835 INFO L225 Difference]: With dead ends: 180 [2018-11-18 09:45:34,835 INFO L226 Difference]: Without dead ends: 176 [2018-11-18 09:45:34,836 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-18 09:45:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 151. [2018-11-18 09:45:34,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-18 09:45:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 156 transitions. [2018-11-18 09:45:34,867 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 156 transitions. Word has length 7 [2018-11-18 09:45:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:34,868 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 156 transitions. [2018-11-18 09:45:34,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 156 transitions. [2018-11-18 09:45:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 09:45:34,868 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:34,868 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:34,869 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:34,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1716123184, now seen corresponding path program 1 times [2018-11-18 09:45:34,869 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:34,869 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:34,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:34,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:34,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:34,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:34,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:34,913 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 09:45:34,944 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 09:45:34,944 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:34,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:34,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:34,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:34,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:34,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:34,948 INFO L87 Difference]: Start difference. First operand 151 states and 156 transitions. Second operand 3 states. [2018-11-18 09:45:35,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:35,154 INFO L93 Difference]: Finished difference Result 148 states and 153 transitions. [2018-11-18 09:45:35,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:35,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 09:45:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:35,155 INFO L225 Difference]: With dead ends: 148 [2018-11-18 09:45:35,156 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 09:45:35,156 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 09:45:35,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 09:45:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 09:45:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 153 transitions. [2018-11-18 09:45:35,164 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 153 transitions. Word has length 7 [2018-11-18 09:45:35,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:35,165 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 153 transitions. [2018-11-18 09:45:35,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 153 transitions. [2018-11-18 09:45:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:45:35,165 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:35,165 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:35,166 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:35,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:35,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1494610765, now seen corresponding path program 1 times [2018-11-18 09:45:35,167 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:35,167 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:35,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:35,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:35,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-18 09:45:35,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:35,260 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-11-18 09:45:35,268 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 09:45:35,268 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:35,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:35,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:45:35,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:45:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:45:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:45:35,270 INFO L87 Difference]: Start difference. First operand 148 states and 153 transitions. Second operand 4 states. [2018-11-18 09:45:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:35,435 INFO L93 Difference]: Finished difference Result 148 states and 153 transitions. [2018-11-18 09:45:35,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:45:35,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-18 09:45:35,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:35,437 INFO L225 Difference]: With dead ends: 148 [2018-11-18 09:45:35,437 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 09:45:35,437 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:45:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 09:45:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2018-11-18 09:45:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-18 09:45:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2018-11-18 09:45:35,444 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 11 [2018-11-18 09:45:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:35,444 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2018-11-18 09:45:35,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:45:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2018-11-18 09:45:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:45:35,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:35,445 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:35,445 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:35,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:35,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1494610764, now seen corresponding path program 1 times [2018-11-18 09:45:35,446 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:35,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/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 09:45:35,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:35,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:35,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:35,494 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,499 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 09:45:35,504 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 09:45:35,504 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:35,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:35,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:45:35,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:35,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:35,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:35,506 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand 3 states. [2018-11-18 09:45:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:35,694 INFO L93 Difference]: Finished difference Result 157 states and 163 transitions. [2018-11-18 09:45:35,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:35,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 09:45:35,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:35,695 INFO L225 Difference]: With dead ends: 157 [2018-11-18 09:45:35,695 INFO L226 Difference]: Without dead ends: 157 [2018-11-18 09:45:35,696 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-11-18 09:45:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 148. [2018-11-18 09:45:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 09:45:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2018-11-18 09:45:35,700 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 11 [2018-11-18 09:45:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:35,700 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2018-11-18 09:45:35,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2018-11-18 09:45:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 09:45:35,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:35,701 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:35,701 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:35,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:35,702 INFO L82 PathProgramCache]: Analyzing trace with hash -22418053, now seen corresponding path program 1 times [2018-11-18 09:45:35,702 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:35,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:35,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:35,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:35,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:35,761 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,763 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:35,774 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:35,775 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:35,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 09:45:35,777 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:35,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:35,791 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2018-11-18 09:45:35,804 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 09:45:35,804 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:35,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:35,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:35,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:35,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:35,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:35,813 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 5 states. [2018-11-18 09:45:36,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:36,148 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2018-11-18 09:45:36,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:36,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-18 09:45:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:36,149 INFO L225 Difference]: With dead ends: 151 [2018-11-18 09:45:36,149 INFO L226 Difference]: Without dead ends: 151 [2018-11-18 09:45:36,149 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:45:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-11-18 09:45:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2018-11-18 09:45:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 09:45:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 145 transitions. [2018-11-18 09:45:36,153 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 145 transitions. Word has length 17 [2018-11-18 09:45:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:36,153 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 145 transitions. [2018-11-18 09:45:36,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 145 transitions. [2018-11-18 09:45:36,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 09:45:36,153 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:36,154 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:36,154 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:36,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:36,154 INFO L82 PathProgramCache]: Analyzing trace with hash -22418052, now seen corresponding path program 1 times [2018-11-18 09:45:36,154 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:36,154 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:36,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:36,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:36,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:36,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:36,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-18 09:45:36,256 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:36,258 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:36,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 09:45:36,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,269 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 14 treesize of output 17 [2018-11-18 09:45:36,269 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,276 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:36,276 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:20 [2018-11-18 09:45:36,289 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 09:45:36,289 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:36,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:36,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:36,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:36,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:36,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:36,291 INFO L87 Difference]: Start difference. First operand 136 states and 145 transitions. Second operand 5 states. [2018-11-18 09:45:36,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:36,792 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2018-11-18 09:45:36,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:36,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-18 09:45:36,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:36,794 INFO L225 Difference]: With dead ends: 167 [2018-11-18 09:45:36,794 INFO L226 Difference]: Without dead ends: 167 [2018-11-18 09:45:36,795 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 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 09:45:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-18 09:45:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 145. [2018-11-18 09:45:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 09:45:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 157 transitions. [2018-11-18 09:45:36,799 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 157 transitions. Word has length 17 [2018-11-18 09:45:36,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:36,799 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 157 transitions. [2018-11-18 09:45:36,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:36,800 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 157 transitions. [2018-11-18 09:45:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 09:45:36,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:36,800 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:36,800 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:36,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash -68912258, now seen corresponding path program 1 times [2018-11-18 09:45:36,801 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:36,801 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:36,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:36,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:36,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:36,866 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:36,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:36,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:36,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,892 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-11-18 09:45:36,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 09:45:36,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-18 09:45:36,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:36,906 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-11-18 09:45:36,911 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 09:45:36,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:36,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:36,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:36,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:36,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:36,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:36,913 INFO L87 Difference]: Start difference. First operand 145 states and 157 transitions. Second operand 5 states. [2018-11-18 09:45:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:37,259 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2018-11-18 09:45:37,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:37,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-18 09:45:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:37,260 INFO L225 Difference]: With dead ends: 194 [2018-11-18 09:45:37,260 INFO L226 Difference]: Without dead ends: 194 [2018-11-18 09:45:37,260 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 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 09:45:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-11-18 09:45:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2018-11-18 09:45:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-18 09:45:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 155 transitions. [2018-11-18 09:45:37,263 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 155 transitions. Word has length 19 [2018-11-18 09:45:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:37,263 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 155 transitions. [2018-11-18 09:45:37,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:37,263 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 155 transitions. [2018-11-18 09:45:37,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 09:45:37,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:37,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:37,264 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:37,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:37,265 INFO L82 PathProgramCache]: Analyzing trace with hash -68912257, now seen corresponding path program 1 times [2018-11-18 09:45:37,265 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:37,265 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:37,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:37,326 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:37,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:37,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,334 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,334 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 09:45:37,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:37,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:37,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,352 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:37,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:37,366 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,373 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,380 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2018-11-18 09:45:37,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 09:45:37,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 09:45:37,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 09:45:37,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 09:45:37,407 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,409 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,412 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-11-18 09:45:37,420 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 09:45:37,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:37,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:37,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:37,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:37,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:37,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:37,426 INFO L87 Difference]: Start difference. First operand 144 states and 155 transitions. Second operand 5 states. [2018-11-18 09:45:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:37,836 INFO L93 Difference]: Finished difference Result 216 states and 233 transitions. [2018-11-18 09:45:37,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:37,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-18 09:45:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:37,837 INFO L225 Difference]: With dead ends: 216 [2018-11-18 09:45:37,838 INFO L226 Difference]: Without dead ends: 216 [2018-11-18 09:45:37,838 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-18 09:45:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 143. [2018-11-18 09:45:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-11-18 09:45:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 153 transitions. [2018-11-18 09:45:37,841 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 153 transitions. Word has length 19 [2018-11-18 09:45:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:37,841 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 153 transitions. [2018-11-18 09:45:37,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 153 transitions. [2018-11-18 09:45:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 09:45:37,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:37,842 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] [2018-11-18 09:45:37,842 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:37,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:37,842 INFO L82 PathProgramCache]: Analyzing trace with hash 908342208, now seen corresponding path program 1 times [2018-11-18 09:45:37,842 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:37,843 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:37,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:37,924 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:37,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-18 09:45:37,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:37,940 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-11-18 09:45:37,953 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:37,954 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:37,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 09:45:37,955 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2018-11-18 09:45:37,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:37,976 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 09:45:37,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:37,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:26 [2018-11-18 09:45:38,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-18 09:45:38,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:38,031 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:38,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:38,050 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:38,050 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2018-11-18 09:45:38,084 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 40 treesize of output 28 [2018-11-18 09:45:38,087 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 21 treesize of output 12 [2018-11-18 09:45:38,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:38,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:38,096 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:38,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:38,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:38,115 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 09:45:38,146 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 09:45:38,146 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:38,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:38,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 09:45:38,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 09:45:38,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 09:45:38,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:45:38,148 INFO L87 Difference]: Start difference. First operand 143 states and 153 transitions. Second operand 11 states. [2018-11-18 09:45:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:38,999 INFO L93 Difference]: Finished difference Result 198 states and 212 transitions. [2018-11-18 09:45:39,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 09:45:39,000 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2018-11-18 09:45:39,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:39,001 INFO L225 Difference]: With dead ends: 198 [2018-11-18 09:45:39,001 INFO L226 Difference]: Without dead ends: 198 [2018-11-18 09:45:39,001 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:45:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-11-18 09:45:39,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 142. [2018-11-18 09:45:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-11-18 09:45:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2018-11-18 09:45:39,005 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 23 [2018-11-18 09:45:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:39,005 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2018-11-18 09:45:39,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 09:45:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2018-11-18 09:45:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 09:45:39,005 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:39,006 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] [2018-11-18 09:45:39,006 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:39,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:39,006 INFO L82 PathProgramCache]: Analyzing trace with hash 908342209, now seen corresponding path program 1 times [2018-11-18 09:45:39,006 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:39,006 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:39,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:39,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:39,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:39,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:39,145 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:39,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:39,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 09:45:39,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,163 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 6 treesize of output 5 [2018-11-18 09:45:39,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,169 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-11-18 09:45:39,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:39,190 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 09:45:39,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:39,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:39,212 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,215 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,224 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-11-18 09:45:39,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-18 09:45:39,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:39,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-18 09:45:39,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:39,341 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,355 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:39,373 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2018-11-18 09:45:39,425 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 28 treesize of output 26 [2018-11-18 09:45:39,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:39,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 09:45:39,438 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,459 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 38 treesize of output 26 [2018-11-18 09:45:39,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:39,462 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,473 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 19 treesize of output 10 [2018-11-18 09:45:39,473 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,477 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:39,481 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:65, output treesize:9 [2018-11-18 09:45:39,508 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 09:45:39,508 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:39,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:39,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:45:39,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:45:39,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:45:39,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:45:39,510 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 10 states. [2018-11-18 09:45:40,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:40,556 INFO L93 Difference]: Finished difference Result 170 states and 181 transitions. [2018-11-18 09:45:40,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 09:45:40,557 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-11-18 09:45:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:40,558 INFO L225 Difference]: With dead ends: 170 [2018-11-18 09:45:40,558 INFO L226 Difference]: Without dead ends: 170 [2018-11-18 09:45:40,558 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2018-11-18 09:45:40,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-11-18 09:45:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 147. [2018-11-18 09:45:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-18 09:45:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2018-11-18 09:45:40,560 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 23 [2018-11-18 09:45:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:40,560 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2018-11-18 09:45:40,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:45:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2018-11-18 09:45:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 09:45:40,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:40,561 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:40,561 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:40,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:40,561 INFO L82 PathProgramCache]: Analyzing trace with hash -984980827, now seen corresponding path program 1 times [2018-11-18 09:45:40,562 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:40,562 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:40,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:40,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:40,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:40,649 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,650 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:40,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:40,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:40,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,663 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2018-11-18 09:45:40,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 09:45:40,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 09:45:40,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:40,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-11-18 09:45:40,677 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 09:45:40,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:40,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:40,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:40,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:40,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:40,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:40,679 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 5 states. [2018-11-18 09:45:41,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:41,058 INFO L93 Difference]: Finished difference Result 220 states and 237 transitions. [2018-11-18 09:45:41,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:41,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 09:45:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:41,059 INFO L225 Difference]: With dead ends: 220 [2018-11-18 09:45:41,059 INFO L226 Difference]: Without dead ends: 220 [2018-11-18 09:45:41,060 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 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 09:45:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-11-18 09:45:41,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 146. [2018-11-18 09:45:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 09:45:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 156 transitions. [2018-11-18 09:45:41,062 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 156 transitions. Word has length 29 [2018-11-18 09:45:41,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:41,062 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 156 transitions. [2018-11-18 09:45:41,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2018-11-18 09:45:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 09:45:41,063 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:41,063 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:41,063 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:41,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:41,063 INFO L82 PathProgramCache]: Analyzing trace with hash -984980826, now seen corresponding path program 1 times [2018-11-18 09:45:41,064 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:41,064 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:41,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:41,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:41,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:41,144 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,149 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,150 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 09:45:41,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:41,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:41,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:41,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:41,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,180 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,185 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2018-11-18 09:45:41,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 09:45:41,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 09:45:41,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 09:45:41,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 09:45:41,209 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,210 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:41,213 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-11-18 09:45:41,220 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 09:45:41,220 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:41,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:41,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:41,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:41,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:41,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:41,222 INFO L87 Difference]: Start difference. First operand 146 states and 156 transitions. Second operand 5 states. [2018-11-18 09:45:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:41,663 INFO L93 Difference]: Finished difference Result 242 states and 261 transitions. [2018-11-18 09:45:41,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:41,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 09:45:41,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:41,665 INFO L225 Difference]: With dead ends: 242 [2018-11-18 09:45:41,665 INFO L226 Difference]: Without dead ends: 242 [2018-11-18 09:45:41,665 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:45:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-18 09:45:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 145. [2018-11-18 09:45:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 09:45:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2018-11-18 09:45:41,668 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 29 [2018-11-18 09:45:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:41,668 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2018-11-18 09:45:41,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2018-11-18 09:45:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 09:45:41,669 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:41,669 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:41,669 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:41,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash -327104804, now seen corresponding path program 1 times [2018-11-18 09:45:41,670 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:41,670 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:41,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:41,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:41,731 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 09:45:41,731 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:41,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:41,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:45:41,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:45:41,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:41,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:41,734 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand 3 states. [2018-11-18 09:45:41,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:41,854 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2018-11-18 09:45:41,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:41,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-18 09:45:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:41,855 INFO L225 Difference]: With dead ends: 154 [2018-11-18 09:45:41,855 INFO L226 Difference]: Without dead ends: 154 [2018-11-18 09:45:41,855 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-18 09:45:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 145. [2018-11-18 09:45:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 09:45:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2018-11-18 09:45:41,858 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 30 [2018-11-18 09:45:41,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:41,858 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2018-11-18 09:45:41,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:45:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2018-11-18 09:45:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 09:45:41,859 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:41,859 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:41,859 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:41,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:41,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2121387687, now seen corresponding path program 1 times [2018-11-18 09:45:41,860 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:41,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:41,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:42,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:42,020 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 7 treesize of output 5 [2018-11-18 09:45:42,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 09:45:42,021 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,025 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,032 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,032 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:7, output treesize:1 [2018-11-18 09:45:42,041 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:42,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:42,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 09:45:42,043 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,048 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2018-11-18 09:45:42,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:42,061 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 09:45:42,061 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,063 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,070 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,070 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:24 [2018-11-18 09:45:42,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-18 09:45:42,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:42,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,114 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:42,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:37 [2018-11-18 09:45:42,148 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 38 treesize of output 26 [2018-11-18 09:45:42,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:42,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,157 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 19 treesize of output 10 [2018-11-18 09:45:42,158 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:42,166 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:44, output treesize:16 [2018-11-18 09:45:42,195 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 09:45:42,195 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:42,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:42,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 09:45:42,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:45:42,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:45:42,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:45:42,198 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand 9 states. [2018-11-18 09:45:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:42,753 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2018-11-18 09:45:42,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 09:45:42,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-11-18 09:45:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:42,754 INFO L225 Difference]: With dead ends: 154 [2018-11-18 09:45:42,754 INFO L226 Difference]: Without dead ends: 154 [2018-11-18 09:45:42,755 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:45:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-18 09:45:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 144. [2018-11-18 09:45:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-18 09:45:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2018-11-18 09:45:42,757 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 33 [2018-11-18 09:45:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:42,757 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2018-11-18 09:45:42,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:45:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2018-11-18 09:45:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 09:45:42,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:42,758 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:42,758 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:42,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:42,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2121387688, now seen corresponding path program 1 times [2018-11-18 09:45:42,758 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:42,758 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:42,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:42,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:42,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:42,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,895 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:42,901 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:42,905 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:42,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 09:45:42,906 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,911 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2018-11-18 09:45:42,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:42,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 09:45:42,924 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,925 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,932 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:26 [2018-11-18 09:45:42,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-18 09:45:42,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:42,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:42,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:42,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2018-11-18 09:45:43,017 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 40 treesize of output 28 [2018-11-18 09:45:43,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:43,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,028 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 21 treesize of output 12 [2018-11-18 09:45:43,029 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,033 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:43,039 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 09:45:43,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:43,070 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,085 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:43,085 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 09:45:43,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 09:45:43,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,099 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:13 [2018-11-18 09:45:43,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:43,122 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 09:45:43,122 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:43,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:43,139 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,141 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,149 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,149 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-11-18 09:45:43,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-18 09:45:43,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:43,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-18 09:45:43,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 09:45:43,293 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,304 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 09:45:43,324 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2018-11-18 09:45:43,380 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 28 treesize of output 26 [2018-11-18 09:45:43,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:43,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 09:45:43,395 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,417 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 38 treesize of output 26 [2018-11-18 09:45:43,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 09:45:43,419 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,427 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 19 treesize of output 10 [2018-11-18 09:45:43,427 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,431 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:43,436 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:65, output treesize:9 [2018-11-18 09:45:43,494 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 09:45:43,494 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:43,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:43,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 09:45:43,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 09:45:43,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 09:45:43,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:45:43,497 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand 16 states. [2018-11-18 09:45:44,401 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-18 09:45:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:45,446 INFO L93 Difference]: Finished difference Result 160 states and 170 transitions. [2018-11-18 09:45:45,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 09:45:45,447 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 33 [2018-11-18 09:45:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:45,447 INFO L225 Difference]: With dead ends: 160 [2018-11-18 09:45:45,447 INFO L226 Difference]: Without dead ends: 160 [2018-11-18 09:45:45,448 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 09:45:45,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-11-18 09:45:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 119. [2018-11-18 09:45:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-18 09:45:45,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2018-11-18 09:45:45,451 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 33 [2018-11-18 09:45:45,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:45,451 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2018-11-18 09:45:45,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 09:45:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2018-11-18 09:45:45,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 09:45:45,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:45,452 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:45,452 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:45,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:45,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1797789230, now seen corresponding path program 1 times [2018-11-18 09:45:45,452 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:45,452 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 17 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 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:45,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:45,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:45,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:45,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:45,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,557 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 09:45:45,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 09:45:45,570 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,572 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,578 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2018-11-18 09:45:45,595 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 21 treesize of output 16 [2018-11-18 09:45:45,599 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:45,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 09:45:45,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,608 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,628 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 21 treesize of output 16 [2018-11-18 09:45:45,632 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:45,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 09:45:45,632 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,649 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2018-11-18 09:45:45,690 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 22 treesize of output 16 [2018-11-18 09:45:45,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2018-11-18 09:45:45,693 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,708 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 22 treesize of output 16 [2018-11-18 09:45:45,710 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 16 treesize of output 3 [2018-11-18 09:45:45,710 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,711 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:45,718 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:46, output treesize:10 [2018-11-18 09:45:45,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:45,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:45:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:45,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:45:45,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2018-11-18 09:45:45,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 09:45:45,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 09:45:45,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:45:45,822 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand 13 states. [2018-11-18 09:45:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:46,541 INFO L93 Difference]: Finished difference Result 183 states and 195 transitions. [2018-11-18 09:45:46,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:45:46,541 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-11-18 09:45:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:46,542 INFO L225 Difference]: With dead ends: 183 [2018-11-18 09:45:46,542 INFO L226 Difference]: Without dead ends: 183 [2018-11-18 09:45:46,542 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:45:46,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-18 09:45:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 137. [2018-11-18 09:45:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 09:45:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2018-11-18 09:45:46,545 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 33 [2018-11-18 09:45:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:46,546 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2018-11-18 09:45:46,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 09:45:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2018-11-18 09:45:46,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 09:45:46,546 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:46,546 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 09:45:46,547 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:46,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:46,547 INFO L82 PathProgramCache]: Analyzing trace with hash -827854445, now seen corresponding path program 1 times [2018-11-18 09:45:46,547 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:46,547 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:46,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:46,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:46,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 09:45:46,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 09:45:46,592 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,594 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-18 09:45:46,601 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 09:45:46,601 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:46,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:46,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:45:46,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:45:46,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:46,603 INFO L87 Difference]: Start difference. First operand 137 states and 147 transitions. Second operand 5 states. [2018-11-18 09:45:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:46,800 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2018-11-18 09:45:46,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:45:46,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-18 09:45:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:46,801 INFO L225 Difference]: With dead ends: 143 [2018-11-18 09:45:46,801 INFO L226 Difference]: Without dead ends: 143 [2018-11-18 09:45:46,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-18 09:45:46,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 136. [2018-11-18 09:45:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 09:45:46,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2018-11-18 09:45:46,804 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 35 [2018-11-18 09:45:46,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:46,804 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2018-11-18 09:45:46,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:45:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2018-11-18 09:45:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 09:45:46,804 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:46,804 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:46,805 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:46,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:46,805 INFO L82 PathProgramCache]: Analyzing trace with hash -303065098, now seen corresponding path program 1 times [2018-11-18 09:45:46,805 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:46,805 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 19 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 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:46,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:46,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:46,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 09:45:46,869 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,871 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 09:45:46,880 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:46,881 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 09:45:46,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 09:45:46,882 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,884 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-11-18 09:45:46,890 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 7 treesize of output 5 [2018-11-18 09:45:46,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 09:45:46,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:46,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:12, output treesize:4 [2018-11-18 09:45:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:45:46,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:46,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:46,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:46,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:45:46,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:45:46,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:45:46,899 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand 4 states. [2018-11-18 09:45:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:47,059 INFO L93 Difference]: Finished difference Result 166 states and 174 transitions. [2018-11-18 09:45:47,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:45:47,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-18 09:45:47,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:47,062 INFO L225 Difference]: With dead ends: 166 [2018-11-18 09:45:47,063 INFO L226 Difference]: Without dead ends: 166 [2018-11-18 09:45:47,063 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:47,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-11-18 09:45:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 136. [2018-11-18 09:45:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 09:45:47,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 143 transitions. [2018-11-18 09:45:47,068 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 143 transitions. Word has length 36 [2018-11-18 09:45:47,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:47,068 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 143 transitions. [2018-11-18 09:45:47,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:45:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 143 transitions. [2018-11-18 09:45:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 09:45:47,068 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:47,069 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:47,069 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:47,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:47,069 INFO L82 PathProgramCache]: Analyzing trace with hash -183060047, now seen corresponding path program 1 times [2018-11-18 09:45:47,069 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:47,069 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 20 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 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:47,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:47,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:47,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 09:45:47,146 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 09:45:47,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-18 09:45:47,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 09:45:47,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 09:45:47,159 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-18 09:45:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:45:47,168 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:45:47,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:47,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:47,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:45:47,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:45:47,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:45:47,175 INFO L87 Difference]: Start difference. First operand 136 states and 143 transitions. Second operand 4 states. [2018-11-18 09:45:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:47,317 INFO L93 Difference]: Finished difference Result 201 states and 212 transitions. [2018-11-18 09:45:47,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:45:47,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-11-18 09:45:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:47,319 INFO L225 Difference]: With dead ends: 201 [2018-11-18 09:45:47,319 INFO L226 Difference]: Without dead ends: 201 [2018-11-18 09:45:47,320 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-11-18 09:45:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 190. [2018-11-18 09:45:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-18 09:45:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 207 transitions. [2018-11-18 09:45:47,323 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 207 transitions. Word has length 41 [2018-11-18 09:45:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:47,324 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 207 transitions. [2018-11-18 09:45:47,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:45:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 207 transitions. [2018-11-18 09:45:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 09:45:47,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:47,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:47,325 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:47,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 806437419, now seen corresponding path program 1 times [2018-11-18 09:45:47,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:47,325 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 21 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 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:47,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:47,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:45:47,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 09:45:47,477 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 09:45:47,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-18 09:45:47,519 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 09:45:47,520 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,523 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,535 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,535 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-18 09:45:47,765 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 22 treesize of output 16 [2018-11-18 09:45:47,768 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 16 treesize of output 3 [2018-11-18 09:45:47,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,771 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,788 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 22 treesize of output 16 [2018-11-18 09:45:47,792 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 16 treesize of output 3 [2018-11-18 09:45:47,792 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,797 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 09:45:47,804 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:7 [2018-11-18 09:45:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:47,903 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:45:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:48,033 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:45:48,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2018-11-18 09:45:48,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 09:45:48,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 09:45:48,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 09:45:48,034 INFO L87 Difference]: Start difference. First operand 190 states and 207 transitions. Second operand 15 states. [2018-11-18 09:45:49,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:49,507 INFO L93 Difference]: Finished difference Result 250 states and 270 transitions. [2018-11-18 09:45:49,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 09:45:49,508 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-11-18 09:45:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:45:49,509 INFO L225 Difference]: With dead ends: 250 [2018-11-18 09:45:49,509 INFO L226 Difference]: Without dead ends: 250 [2018-11-18 09:45:49,509 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2018-11-18 09:45:49,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-11-18 09:45:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 210. [2018-11-18 09:45:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-11-18 09:45:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 230 transitions. [2018-11-18 09:45:49,513 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 230 transitions. Word has length 43 [2018-11-18 09:45:49,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:45:49,513 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 230 transitions. [2018-11-18 09:45:49,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 09:45:49,513 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 230 transitions. [2018-11-18 09:45:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 09:45:49,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:45:49,514 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:49,514 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-11-18 09:45:49,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:49,514 INFO L82 PathProgramCache]: Analyzing trace with hash -770244328, now seen corresponding path program 1 times [2018-11-18 09:45:49,514 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:45:49,514 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e1279f-71b8-4378-9ca9-b4944ca0f953/bin-2019/uautomizer/cvc4nyu Starting monitored process 22 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 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:45:49,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:49,754 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:45:49,770 WARN L387 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-18 09:45:49,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:45:49 BoogieIcfgContainer [2018-11-18 09:45:49,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:45:49,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:45:49,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:45:49,786 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:45:49,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:34" (3/4) ... [2018-11-18 09:45:49,792 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:45:49,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:45:49,793 INFO L168 Benchmark]: Toolchain (without parser) took 16422.03 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 327.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -203.0 MB). Peak memory consumption was 124.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:49,793 INFO L168 Benchmark]: CDTParser took 0.10 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 09:45:49,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:49,793 INFO L168 Benchmark]: Boogie Preprocessor took 42.05 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:49,794 INFO L168 Benchmark]: RCFGBuilder took 593.88 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: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:49,794 INFO L168 Benchmark]: TraceAbstraction took 15385.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -91.0 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:45:49,794 INFO L168 Benchmark]: Witness Printer took 6.08 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:45:49,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 391.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.05 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 593.88 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: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15385.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -91.0 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.08 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 985]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 985. Possible FailurePath: [L987] EXPR, FCALL malloc(sizeof(struct TSLL)) [L987] struct TSLL* null = malloc(sizeof(struct TSLL)); VAL [malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L988] FCALL null->next = ((void*)0) VAL [malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L989] FCALL null->prev = ((void*)0) VAL [malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L990] FCALL null->colour = BLACK VAL [malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L993] FCALL list->next = null VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L994] FCALL list->prev = null VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L995] FCALL list->colour = BLACK VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L997] struct TSLL* end = list; VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1030] COND FALSE !(!(null != end)) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1030] COND FALSE !(0) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1031] EXPR, FCALL end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1031] COND FALSE !(!(BLACK == end->colour)) [L1031] COND FALSE !(0) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1032] COND TRUE null != end VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1034] EXPR, FCALL end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1034] COND FALSE !(RED == end->colour) [L1041] EXPR, FCALL end->next VAL [end={-2:0}, end->next={1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1041] end = end->next [L1032] COND FALSE !(null != end) VAL [end={1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1045] COND TRUE null != list VAL [end={1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1047] EXPR, FCALL list->colour VAL [end={1:0}, list={-2:0}, list->colour=1, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1047] COND FALSE !(RED == list->colour) [L1056] EXPR, FCALL list->next VAL [end={1:0}, list={-2:0}, list->next={1:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1056] end = list->next [L1057] free(list) VAL [end={1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1057] free(list) [L1057] FCALL free(list) [L1058] list = end VAL [end={1:0}, list={1:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1045] COND FALSE !(null != list) VAL [end={1:0}, list={1:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] [L1062] return 0; VAL [\result=0, end={1:0}, list={1:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={1:0}, null={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 157 locations, 67 error locations. UNSAFE Result, 15.3s OverallTime, 21 OverallIterations, 2 TraceHistogramMax, 10.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1892 SDtfs, 3338 SDslu, 3518 SDs, 0 SdLazy, 4768 SolverSat, 297 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 457 SyntacticMatches, 5 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 642 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 550 ConstructedInterpolants, 23 QuantifiedInterpolants, 149604 SizeOfPredicates, 133 NumberOfNonLiveVariables, 2036 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 22 InterpolantComputations, 18 PerfectInterpolantSequences, 8/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...