./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/TaipanMemDerefMemtrack.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_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/TaipanMemDerefMemtrack.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_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 01:56:00,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:56:00,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:56:00,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:56:00,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:56:00,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:56:00,074 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:56:00,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:56:00,077 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:56:00,078 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:56:00,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:56:00,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:56:00,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:56:00,080 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:56:00,081 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:56:00,082 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:56:00,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:56:00,084 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:56:00,085 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:56:00,087 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:56:00,088 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:56:00,089 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:56:00,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:56:00,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:56:00,091 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:56:00,091 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:56:00,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:56:00,093 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:56:00,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:56:00,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:56:00,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:56:00,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:56:00,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:56:00,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:56:00,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:56:00,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:56:00,097 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-10 01:56:00,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:56:00,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:56:00,110 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:56:00,110 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 01:56:00,110 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 01:56:00,110 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 01:56:00,110 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 01:56:00,110 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 01:56:00,111 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 01:56:00,111 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 01:56:00,111 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 01:56:00,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 01:56:00,112 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 01:56:00,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:56:00,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 01:56:00,112 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 01:56:00,112 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:56:00,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 01:56:00,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:56:00,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 01:56:00,114 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:56:00,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 01:56:00,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:56:00,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:56:00,115 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:56:00,115 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 01:56:00,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:56:00,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 01:56:00,115 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-11-10 01:56:00,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:56:00,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:56:00,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:56:00,158 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:56:00,158 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:56:00,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:00,213 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/933a70bb7/35d313a592a14167902b24362d8c8db3/FLAGf0d246edc [2018-11-10 01:56:00,619 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:56:00,619 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:00,630 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/933a70bb7/35d313a592a14167902b24362d8c8db3/FLAGf0d246edc [2018-11-10 01:56:00,641 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/933a70bb7/35d313a592a14167902b24362d8c8db3 [2018-11-10 01:56:00,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:56:00,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 01:56:00,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:56:00,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:56:00,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:56:00,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:00,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7600c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00, skipping insertion in model container [2018-11-10 01:56:00,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:00,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:56:00,692 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:56:00,908 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:56:00,917 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:56:00,956 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:56:00,982 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:56:00,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00 WrapperNode [2018-11-10 01:56:00,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:56:00,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 01:56:00,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 01:56:00,983 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 01:56:01,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 01:56:01,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:56:01,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:56:01,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:56:01,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... [2018-11-10 01:56:01,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:56:01,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:56:01,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:56:01,125 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:56:01,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:56:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 01:56:01,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 01:56:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 01:56:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 01:56:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:56:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:56:01,673 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:56:01,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:01 BoogieIcfgContainer [2018-11-10 01:56:01,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:56:01,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 01:56:01,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 01:56:01,678 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 01:56:01,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:56:00" (1/3) ... [2018-11-10 01:56:01,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d481b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:01, skipping insertion in model container [2018-11-10 01:56:01,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:00" (2/3) ... [2018-11-10 01:56:01,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d481b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:01, skipping insertion in model container [2018-11-10 01:56:01,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:01" (3/3) ... [2018-11-10 01:56:01,681 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:01,688 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 01:56:01,693 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-11-10 01:56:01,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2018-11-10 01:56:01,724 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 01:56:01,724 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 01:56:01,724 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 01:56:01,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 01:56:01,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 01:56:01,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 01:56:01,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 01:56:01,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 01:56:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-11-10 01:56:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 01:56:01,745 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:01,746 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:01,748 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:01,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:01,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2008024542, now seen corresponding path program 1 times [2018-11-10 01:56:01,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:01,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:01,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:01,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:01,805 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:01,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:01,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:56:01,888 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:01,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:56:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:56:01,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:01,904 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 3 states. [2018-11-10 01:56:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:02,165 INFO L93 Difference]: Finished difference Result 202 states and 209 transitions. [2018-11-10 01:56:02,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:56:02,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-10 01:56:02,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:02,176 INFO L225 Difference]: With dead ends: 202 [2018-11-10 01:56:02,176 INFO L226 Difference]: Without dead ends: 198 [2018-11-10 01:56:02,178 INFO L605 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 [2018-11-10 01:56:02,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-11-10 01:56:02,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2018-11-10 01:56:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-10 01:56:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 177 transitions. [2018-11-10 01:56:02,220 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 177 transitions. Word has length 7 [2018-11-10 01:56:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:02,221 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 177 transitions. [2018-11-10 01:56:02,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:56:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 177 transitions. [2018-11-10 01:56:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 01:56:02,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:02,222 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:02,223 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:02,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:02,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2119218619, now seen corresponding path program 1 times [2018-11-10 01:56:02,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:02,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:02,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,226 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:02,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:02,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:56:02,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:02,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:56:02,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:56:02,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:02,298 INFO L87 Difference]: Start difference. First operand 172 states and 177 transitions. Second operand 3 states. [2018-11-10 01:56:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:02,412 INFO L93 Difference]: Finished difference Result 170 states and 175 transitions. [2018-11-10 01:56:02,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:56:02,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 01:56:02,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:02,414 INFO L225 Difference]: With dead ends: 170 [2018-11-10 01:56:02,414 INFO L226 Difference]: Without dead ends: 170 [2018-11-10 01:56:02,414 INFO L605 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 [2018-11-10 01:56:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-11-10 01:56:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-11-10 01:56:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-11-10 01:56:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 175 transitions. [2018-11-10 01:56:02,421 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 175 transitions. Word has length 8 [2018-11-10 01:56:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:02,422 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 175 transitions. [2018-11-10 01:56:02,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:56:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 175 transitions. [2018-11-10 01:56:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 01:56:02,422 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:02,423 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:02,424 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:02,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:02,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1271267708, now seen corresponding path program 1 times [2018-11-10 01:56:02,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:02,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:02,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,427 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:02,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:02,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:02,460 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:02,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:02,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:02,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:02,461 INFO L87 Difference]: Start difference. First operand 170 states and 175 transitions. Second operand 5 states. [2018-11-10 01:56:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:02,720 INFO L93 Difference]: Finished difference Result 195 states and 201 transitions. [2018-11-10 01:56:02,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:02,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-10 01:56:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:02,721 INFO L225 Difference]: With dead ends: 195 [2018-11-10 01:56:02,722 INFO L226 Difference]: Without dead ends: 195 [2018-11-10 01:56:02,722 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-11-10 01:56:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 169. [2018-11-10 01:56:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-11-10 01:56:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 174 transitions. [2018-11-10 01:56:02,731 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 174 transitions. Word has length 9 [2018-11-10 01:56:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:02,732 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 174 transitions. [2018-11-10 01:56:02,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 174 transitions. [2018-11-10 01:56:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 01:56:02,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:02,732 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:02,734 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:02,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash -754593241, now seen corresponding path program 1 times [2018-11-10 01:56:02,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:02,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:02,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,737 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:02,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:02,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:02,783 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:02,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:02,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:02,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:02,783 INFO L87 Difference]: Start difference. First operand 169 states and 174 transitions. Second operand 4 states. [2018-11-10 01:56:02,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:02,925 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2018-11-10 01:56:02,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:56:02,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 01:56:02,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:02,927 INFO L225 Difference]: With dead ends: 168 [2018-11-10 01:56:02,927 INFO L226 Difference]: Without dead ends: 168 [2018-11-10 01:56:02,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-11-10 01:56:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-11-10 01:56:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-10 01:56:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 173 transitions. [2018-11-10 01:56:02,934 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 173 transitions. Word has length 10 [2018-11-10 01:56:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:02,935 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 173 transitions. [2018-11-10 01:56:02,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 173 transitions. [2018-11-10 01:56:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 01:56:02,935 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:02,936 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:02,936 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:02,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:02,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1917553946, now seen corresponding path program 1 times [2018-11-10 01:56:02,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:02,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:02,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:02,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:02,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:02,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:02,989 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:02,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:02,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:02,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:02,990 INFO L87 Difference]: Start difference. First operand 168 states and 173 transitions. Second operand 6 states. [2018-11-10 01:56:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:03,173 INFO L93 Difference]: Finished difference Result 193 states and 199 transitions. [2018-11-10 01:56:03,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:03,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-10 01:56:03,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:03,174 INFO L225 Difference]: With dead ends: 193 [2018-11-10 01:56:03,175 INFO L226 Difference]: Without dead ends: 193 [2018-11-10 01:56:03,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-11-10 01:56:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 167. [2018-11-10 01:56:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-10 01:56:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2018-11-10 01:56:03,179 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 11 [2018-11-10 01:56:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:03,181 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2018-11-10 01:56:03,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2018-11-10 01:56:03,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 01:56:03,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:03,182 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:03,183 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:03,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:03,184 INFO L82 PathProgramCache]: Analyzing trace with hash 685369865, now seen corresponding path program 1 times [2018-11-10 01:56:03,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:03,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:03,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:03,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:03,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:03,235 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:03,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:03,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:03,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:03,236 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand 4 states. [2018-11-10 01:56:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:03,358 INFO L93 Difference]: Finished difference Result 166 states and 171 transitions. [2018-11-10 01:56:03,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:56:03,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-10 01:56:03,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:03,359 INFO L225 Difference]: With dead ends: 166 [2018-11-10 01:56:03,359 INFO L226 Difference]: Without dead ends: 166 [2018-11-10 01:56:03,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-11-10 01:56:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-11-10 01:56:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-11-10 01:56:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2018-11-10 01:56:03,366 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 12 [2018-11-10 01:56:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:03,366 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2018-11-10 01:56:03,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:03,367 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2018-11-10 01:56:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 01:56:03,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:03,367 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:03,368 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:03,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:03,368 INFO L82 PathProgramCache]: Analyzing trace with hash -420828246, now seen corresponding path program 1 times [2018-11-10 01:56:03,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:03,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:03,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:03,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:03,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:03,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:03,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:03,436 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand 5 states. [2018-11-10 01:56:03,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:03,585 INFO L93 Difference]: Finished difference Result 259 states and 269 transitions. [2018-11-10 01:56:03,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:03,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-10 01:56:03,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:03,588 INFO L225 Difference]: With dead ends: 259 [2018-11-10 01:56:03,588 INFO L226 Difference]: Without dead ends: 259 [2018-11-10 01:56:03,588 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-10 01:56:03,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 208. [2018-11-10 01:56:03,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-11-10 01:56:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 236 transitions. [2018-11-10 01:56:03,593 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 236 transitions. Word has length 15 [2018-11-10 01:56:03,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:03,594 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 236 transitions. [2018-11-10 01:56:03,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 236 transitions. [2018-11-10 01:56:03,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 01:56:03,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:03,594 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:03,595 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:03,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:03,595 INFO L82 PathProgramCache]: Analyzing trace with hash -160773683, now seen corresponding path program 1 times [2018-11-10 01:56:03,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:03,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:03,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,597 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:03,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:03,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:03,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:03,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:03,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:03,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:03,661 INFO L87 Difference]: Start difference. First operand 208 states and 236 transitions. Second operand 4 states. [2018-11-10 01:56:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:03,828 INFO L93 Difference]: Finished difference Result 292 states and 303 transitions. [2018-11-10 01:56:03,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:03,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-10 01:56:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:03,830 INFO L225 Difference]: With dead ends: 292 [2018-11-10 01:56:03,830 INFO L226 Difference]: Without dead ends: 292 [2018-11-10 01:56:03,830 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-11-10 01:56:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 218. [2018-11-10 01:56:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-11-10 01:56:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 252 transitions. [2018-11-10 01:56:03,834 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 252 transitions. Word has length 16 [2018-11-10 01:56:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:03,834 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 252 transitions. [2018-11-10 01:56:03,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 252 transitions. [2018-11-10 01:56:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 01:56:03,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:03,835 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:03,836 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:03,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:03,837 INFO L82 PathProgramCache]: Analyzing trace with hash -689016820, now seen corresponding path program 1 times [2018-11-10 01:56:03,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:03,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:03,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:03,839 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:03,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:03,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:03,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:03,886 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:03,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:03,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:03,886 INFO L87 Difference]: Start difference. First operand 218 states and 252 transitions. Second operand 6 states. [2018-11-10 01:56:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:04,153 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2018-11-10 01:56:04,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:04,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-10 01:56:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:04,156 INFO L225 Difference]: With dead ends: 251 [2018-11-10 01:56:04,156 INFO L226 Difference]: Without dead ends: 251 [2018-11-10 01:56:04,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:04,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-10 01:56:04,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 176. [2018-11-10 01:56:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:56:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-11-10 01:56:04,161 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 17 [2018-11-10 01:56:04,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:04,161 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-11-10 01:56:04,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-11-10 01:56:04,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 01:56:04,162 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:04,162 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:04,163 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:04,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:04,164 INFO L82 PathProgramCache]: Analyzing trace with hash 115315119, now seen corresponding path program 1 times [2018-11-10 01:56:04,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:04,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:04,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,165 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:04,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:04,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:04,227 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:04,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:04,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:04,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:04,228 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 5 states. [2018-11-10 01:56:04,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:04,501 INFO L93 Difference]: Finished difference Result 288 states and 299 transitions. [2018-11-10 01:56:04,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:04,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-10 01:56:04,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:04,503 INFO L225 Difference]: With dead ends: 288 [2018-11-10 01:56:04,503 INFO L226 Difference]: Without dead ends: 288 [2018-11-10 01:56:04,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:04,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-11-10 01:56:04,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 175. [2018-11-10 01:56:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-11-10 01:56:04,509 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 18 [2018-11-10 01:56:04,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:04,512 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-11-10 01:56:04,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-11-10 01:56:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 01:56:04,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:04,513 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] [2018-11-10 01:56:04,514 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:04,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:04,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2073116077, now seen corresponding path program 1 times [2018-11-10 01:56:04,514 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:04,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:04,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,516 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:04,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:04,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:04,618 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:04,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:04,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:04,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:04,619 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 7 states. [2018-11-10 01:56:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:04,957 INFO L93 Difference]: Finished difference Result 333 states and 349 transitions. [2018-11-10 01:56:04,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:56:04,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-10 01:56:04,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:04,958 INFO L225 Difference]: With dead ends: 333 [2018-11-10 01:56:04,959 INFO L226 Difference]: Without dead ends: 333 [2018-11-10 01:56:04,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-11-10 01:56:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 179. [2018-11-10 01:56:04,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:56:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2018-11-10 01:56:04,962 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 22 [2018-11-10 01:56:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:04,963 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2018-11-10 01:56:04,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2018-11-10 01:56:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 01:56:04,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:04,964 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] [2018-11-10 01:56:04,965 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:04,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash 157911127, now seen corresponding path program 1 times [2018-11-10 01:56:04,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:04,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:04,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:04,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:05,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:05,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:05,040 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:05,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:05,041 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 6 states. [2018-11-10 01:56:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:05,359 INFO L93 Difference]: Finished difference Result 336 states and 352 transitions. [2018-11-10 01:56:05,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:56:05,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 01:56:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:05,361 INFO L225 Difference]: With dead ends: 336 [2018-11-10 01:56:05,361 INFO L226 Difference]: Without dead ends: 336 [2018-11-10 01:56:05,361 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-11-10 01:56:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 180. [2018-11-10 01:56:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-10 01:56:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2018-11-10 01:56:05,367 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 23 [2018-11-10 01:56:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:05,367 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2018-11-10 01:56:05,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2018-11-10 01:56:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 01:56:05,368 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:05,368 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] [2018-11-10 01:56:05,368 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:05,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:05,369 INFO L82 PathProgramCache]: Analyzing trace with hash 600277717, now seen corresponding path program 1 times [2018-11-10 01:56:05,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:05,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:05,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:05,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:05,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:05,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:05,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:05,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:05,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:05,437 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand 5 states. [2018-11-10 01:56:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:05,640 INFO L93 Difference]: Finished difference Result 204 states and 221 transitions. [2018-11-10 01:56:05,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:05,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-10 01:56:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:05,641 INFO L225 Difference]: With dead ends: 204 [2018-11-10 01:56:05,641 INFO L226 Difference]: Without dead ends: 204 [2018-11-10 01:56:05,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-11-10 01:56:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 175. [2018-11-10 01:56:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2018-11-10 01:56:05,645 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 24 [2018-11-10 01:56:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:05,645 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2018-11-10 01:56:05,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2018-11-10 01:56:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 01:56:05,646 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:05,646 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:05,646 INFO L424 AbstractCegarLoop]: === Iteration 14 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:05,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:05,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1428740121, now seen corresponding path program 1 times [2018-11-10 01:56:05,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:05,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:05,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,648 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:05,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:05,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:05,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:05,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:05,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:05,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:05,695 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand 6 states. [2018-11-10 01:56:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:05,880 INFO L93 Difference]: Finished difference Result 247 states and 258 transitions. [2018-11-10 01:56:05,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:05,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-10 01:56:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:05,881 INFO L225 Difference]: With dead ends: 247 [2018-11-10 01:56:05,881 INFO L226 Difference]: Without dead ends: 247 [2018-11-10 01:56:05,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-10 01:56:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 177. [2018-11-10 01:56:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 191 transitions. [2018-11-10 01:56:05,885 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 191 transitions. Word has length 25 [2018-11-10 01:56:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:05,886 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 191 transitions. [2018-11-10 01:56:05,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 191 transitions. [2018-11-10 01:56:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 01:56:05,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:05,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:05,887 INFO L424 AbstractCegarLoop]: === Iteration 15 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:05,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:05,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1341270871, now seen corresponding path program 1 times [2018-11-10 01:56:05,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:05,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:05,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:05,889 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:05,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:05,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:05,949 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:05,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:05,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:05,950 INFO L87 Difference]: Start difference. First operand 177 states and 191 transitions. Second operand 5 states. [2018-11-10 01:56:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:06,182 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2018-11-10 01:56:06,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:06,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-10 01:56:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:06,184 INFO L225 Difference]: With dead ends: 184 [2018-11-10 01:56:06,184 INFO L226 Difference]: Without dead ends: 184 [2018-11-10 01:56:06,184 INFO L605 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 [2018-11-10 01:56:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-10 01:56:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175. [2018-11-10 01:56:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2018-11-10 01:56:06,187 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 26 [2018-11-10 01:56:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:06,188 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2018-11-10 01:56:06,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2018-11-10 01:56:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:56:06,188 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:06,188 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] [2018-11-10 01:56:06,190 INFO L424 AbstractCegarLoop]: === Iteration 16 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:06,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:06,190 INFO L82 PathProgramCache]: Analyzing trace with hash 377151165, now seen corresponding path program 1 times [2018-11-10 01:56:06,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:06,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:06,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:06,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:06,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:06,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:06,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:06,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:06,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:06,230 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand 7 states. [2018-11-10 01:56:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:06,585 INFO L93 Difference]: Finished difference Result 349 states and 366 transitions. [2018-11-10 01:56:06,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 01:56:06,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-10 01:56:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:06,587 INFO L225 Difference]: With dead ends: 349 [2018-11-10 01:56:06,587 INFO L226 Difference]: Without dead ends: 349 [2018-11-10 01:56:06,588 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-11-10 01:56:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-11-10 01:56:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 177. [2018-11-10 01:56:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 191 transitions. [2018-11-10 01:56:06,592 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 191 transitions. Word has length 27 [2018-11-10 01:56:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:06,592 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 191 transitions. [2018-11-10 01:56:06,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 191 transitions. [2018-11-10 01:56:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:56:06,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:06,593 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] [2018-11-10 01:56:06,593 INFO L424 AbstractCegarLoop]: === Iteration 17 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:06,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:06,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1370275877, now seen corresponding path program 1 times [2018-11-10 01:56:06,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:06,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:06,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,595 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:06,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:06,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:06,655 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:06,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:06,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:06,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:06,656 INFO L87 Difference]: Start difference. First operand 177 states and 191 transitions. Second operand 5 states. [2018-11-10 01:56:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:06,854 INFO L93 Difference]: Finished difference Result 175 states and 189 transitions. [2018-11-10 01:56:06,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:06,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-10 01:56:06,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:06,856 INFO L225 Difference]: With dead ends: 175 [2018-11-10 01:56:06,856 INFO L226 Difference]: Without dead ends: 175 [2018-11-10 01:56:06,856 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-11-10 01:56:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-11-10 01:56:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2018-11-10 01:56:06,860 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 27 [2018-11-10 01:56:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:06,860 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2018-11-10 01:56:06,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2018-11-10 01:56:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 01:56:06,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:06,861 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:06,861 INFO L424 AbstractCegarLoop]: === Iteration 18 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:06,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:06,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1193215557, now seen corresponding path program 1 times [2018-11-10 01:56:06,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:06,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:06,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:06,863 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:06,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:06,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:06,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:06,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:06,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:06,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:06,910 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand 5 states. [2018-11-10 01:56:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:07,118 INFO L93 Difference]: Finished difference Result 239 states and 250 transitions. [2018-11-10 01:56:07,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:07,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2018-11-10 01:56:07,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:07,119 INFO L225 Difference]: With dead ends: 239 [2018-11-10 01:56:07,119 INFO L226 Difference]: Without dead ends: 239 [2018-11-10 01:56:07,120 INFO L605 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 [2018-11-10 01:56:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-11-10 01:56:07,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 175. [2018-11-10 01:56:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-11-10 01:56:07,122 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 28 [2018-11-10 01:56:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:07,122 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-11-10 01:56:07,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-11-10 01:56:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 01:56:07,123 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:07,123 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:07,124 INFO L424 AbstractCegarLoop]: === Iteration 19 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:07,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:07,124 INFO L82 PathProgramCache]: Analyzing trace with hash 471120857, now seen corresponding path program 1 times [2018-11-10 01:56:07,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:07,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:07,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:07,164 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:07,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:07,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:07,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:07,164 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 6 states. [2018-11-10 01:56:07,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:07,352 INFO L93 Difference]: Finished difference Result 196 states and 212 transitions. [2018-11-10 01:56:07,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:07,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-11-10 01:56:07,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:07,354 INFO L225 Difference]: With dead ends: 196 [2018-11-10 01:56:07,354 INFO L226 Difference]: Without dead ends: 196 [2018-11-10 01:56:07,354 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-11-10 01:56:07,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 173. [2018-11-10 01:56:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-11-10 01:56:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 186 transitions. [2018-11-10 01:56:07,357 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 186 transitions. Word has length 28 [2018-11-10 01:56:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:07,357 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 186 transitions. [2018-11-10 01:56:07,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 186 transitions. [2018-11-10 01:56:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 01:56:07,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:07,359 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] [2018-11-10 01:56:07,359 INFO L424 AbstractCegarLoop]: === Iteration 20 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:07,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:07,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1719844765, now seen corresponding path program 1 times [2018-11-10 01:56:07,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:07,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:07,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,361 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:07,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:07,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:07,465 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:07,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:07,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:07,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:07,466 INFO L87 Difference]: Start difference. First operand 173 states and 186 transitions. Second operand 7 states. [2018-11-10 01:56:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:07,680 INFO L93 Difference]: Finished difference Result 276 states and 291 transitions. [2018-11-10 01:56:07,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:07,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-10 01:56:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:07,681 INFO L225 Difference]: With dead ends: 276 [2018-11-10 01:56:07,681 INFO L226 Difference]: Without dead ends: 276 [2018-11-10 01:56:07,681 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-11-10 01:56:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 177. [2018-11-10 01:56:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-11-10 01:56:07,684 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 29 [2018-11-10 01:56:07,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:07,684 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-11-10 01:56:07,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-11-10 01:56:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 01:56:07,685 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:07,685 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] [2018-11-10 01:56:07,686 INFO L424 AbstractCegarLoop]: === Iteration 21 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:07,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:07,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1775580251, now seen corresponding path program 1 times [2018-11-10 01:56:07,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:07,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:07,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:07,687 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:07,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:07,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 01:56:07,769 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:07,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:07,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:07,770 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 11 states. [2018-11-10 01:56:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:08,270 INFO L93 Difference]: Finished difference Result 297 states and 313 transitions. [2018-11-10 01:56:08,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 01:56:08,271 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-11-10 01:56:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:08,272 INFO L225 Difference]: With dead ends: 297 [2018-11-10 01:56:08,272 INFO L226 Difference]: Without dead ends: 297 [2018-11-10 01:56:08,272 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-10 01:56:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-11-10 01:56:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 175. [2018-11-10 01:56:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-11-10 01:56:08,275 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 30 [2018-11-10 01:56:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:08,276 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-11-10 01:56:08,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:56:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-11-10 01:56:08,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 01:56:08,276 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:08,276 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] [2018-11-10 01:56:08,277 INFO L424 AbstractCegarLoop]: === Iteration 22 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:08,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:08,277 INFO L82 PathProgramCache]: Analyzing trace with hash -791586977, now seen corresponding path program 1 times [2018-11-10 01:56:08,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:08,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:08,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:08,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:08,278 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:08,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:08,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 01:56:08,408 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:08,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:08,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:08,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:08,408 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 11 states. [2018-11-10 01:56:09,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:09,092 INFO L93 Difference]: Finished difference Result 446 states and 471 transitions. [2018-11-10 01:56:09,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-10 01:56:09,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-11-10 01:56:09,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:09,094 INFO L225 Difference]: With dead ends: 446 [2018-11-10 01:56:09,094 INFO L226 Difference]: Without dead ends: 446 [2018-11-10 01:56:09,094 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2018-11-10 01:56:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-11-10 01:56:09,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 177. [2018-11-10 01:56:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-11-10 01:56:09,099 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 31 [2018-11-10 01:56:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:09,099 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-11-10 01:56:09,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:56:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-11-10 01:56:09,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 01:56:09,100 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:09,100 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] [2018-11-10 01:56:09,100 INFO L424 AbstractCegarLoop]: === Iteration 23 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:09,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:09,100 INFO L82 PathProgramCache]: Analyzing trace with hash -505870335, now seen corresponding path program 1 times [2018-11-10 01:56:09,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:09,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:09,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:09,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:09,102 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:09,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:09,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:09,162 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:09,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:09,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:09,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:09,163 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 6 states. [2018-11-10 01:56:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:09,347 INFO L93 Difference]: Finished difference Result 182 states and 190 transitions. [2018-11-10 01:56:09,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:09,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-10 01:56:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:09,348 INFO L225 Difference]: With dead ends: 182 [2018-11-10 01:56:09,349 INFO L226 Difference]: Without dead ends: 182 [2018-11-10 01:56:09,349 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-11-10 01:56:09,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 174. [2018-11-10 01:56:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-10 01:56:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 187 transitions. [2018-11-10 01:56:09,352 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 187 transitions. Word has length 33 [2018-11-10 01:56:09,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:09,352 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 187 transitions. [2018-11-10 01:56:09,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 187 transitions. [2018-11-10 01:56:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 01:56:09,353 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:09,353 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:09,353 INFO L424 AbstractCegarLoop]: === Iteration 24 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:09,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1497888902, now seen corresponding path program 1 times [2018-11-10 01:56:09,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:09,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:09,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:09,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:09,355 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:09,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:09,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 01:56:09,511 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:09,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 01:56:09,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 01:56:09,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-10 01:56:09,512 INFO L87 Difference]: Start difference. First operand 174 states and 187 transitions. Second operand 12 states. [2018-11-10 01:56:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:10,341 INFO L93 Difference]: Finished difference Result 468 states and 494 transitions. [2018-11-10 01:56:10,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-10 01:56:10,342 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2018-11-10 01:56:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:10,343 INFO L225 Difference]: With dead ends: 468 [2018-11-10 01:56:10,343 INFO L226 Difference]: Without dead ends: 468 [2018-11-10 01:56:10,344 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2018-11-10 01:56:10,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2018-11-10 01:56:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 179. [2018-11-10 01:56:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:56:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2018-11-10 01:56:10,348 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 34 [2018-11-10 01:56:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:10,348 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2018-11-10 01:56:10,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 01:56:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2018-11-10 01:56:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:56:10,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:10,349 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] [2018-11-10 01:56:10,349 INFO L424 AbstractCegarLoop]: === Iteration 25 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:10,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:10,350 INFO L82 PathProgramCache]: Analyzing trace with hash 2110076393, now seen corresponding path program 1 times [2018-11-10 01:56:10,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:10,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:10,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:10,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:10,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:10,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:10,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:10,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:10,401 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 6 states. [2018-11-10 01:56:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:10,576 INFO L93 Difference]: Finished difference Result 219 states and 236 transitions. [2018-11-10 01:56:10,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:56:10,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-11-10 01:56:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:10,577 INFO L225 Difference]: With dead ends: 219 [2018-11-10 01:56:10,577 INFO L226 Difference]: Without dead ends: 219 [2018-11-10 01:56:10,577 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-11-10 01:56:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 177. [2018-11-10 01:56:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 191 transitions. [2018-11-10 01:56:10,580 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 191 transitions. Word has length 36 [2018-11-10 01:56:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:10,581 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 191 transitions. [2018-11-10 01:56:10,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 191 transitions. [2018-11-10 01:56:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:56:10,581 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:10,581 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] [2018-11-10 01:56:10,582 INFO L424 AbstractCegarLoop]: === Iteration 26 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:10,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:10,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2110141130, now seen corresponding path program 1 times [2018-11-10 01:56:10,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:10,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:10,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:10,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:10,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:10,626 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:10,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:10,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:10,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:10,627 INFO L87 Difference]: Start difference. First operand 177 states and 191 transitions. Second operand 6 states. [2018-11-10 01:56:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:10,781 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2018-11-10 01:56:10,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:10,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-11-10 01:56:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:10,783 INFO L225 Difference]: With dead ends: 208 [2018-11-10 01:56:10,783 INFO L226 Difference]: Without dead ends: 208 [2018-11-10 01:56:10,783 INFO L605 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 [2018-11-10 01:56:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-11-10 01:56:10,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 177. [2018-11-10 01:56:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-11-10 01:56:10,786 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 36 [2018-11-10 01:56:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:10,787 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-11-10 01:56:10,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-11-10 01:56:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:56:10,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:10,787 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:10,788 INFO L424 AbstractCegarLoop]: === Iteration 27 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:10,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:10,788 INFO L82 PathProgramCache]: Analyzing trace with hash 657194024, now seen corresponding path program 1 times [2018-11-10 01:56:10,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:10,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:10,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:10,790 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:10,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:10,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:10,877 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:10,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:10,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:10,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:10,878 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 7 states. [2018-11-10 01:56:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:11,145 INFO L93 Difference]: Finished difference Result 177 states and 190 transitions. [2018-11-10 01:56:11,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:56:11,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-11-10 01:56:11,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:11,146 INFO L225 Difference]: With dead ends: 177 [2018-11-10 01:56:11,146 INFO L226 Difference]: Without dead ends: 177 [2018-11-10 01:56:11,146 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-11-10 01:56:11,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2018-11-10 01:56:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:56:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-11-10 01:56:11,149 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 36 [2018-11-10 01:56:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:11,149 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-11-10 01:56:11,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-11-10 01:56:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:56:11,150 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:11,150 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] [2018-11-10 01:56:11,151 INFO L424 AbstractCegarLoop]: === Iteration 28 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:11,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:11,151 INFO L82 PathProgramCache]: Analyzing trace with hash 651469218, now seen corresponding path program 1 times [2018-11-10 01:56:11,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,152 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:11,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:11,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:11,206 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:11,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:11,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:11,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:11,207 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 6 states. [2018-11-10 01:56:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:11,424 INFO L93 Difference]: Finished difference Result 200 states and 212 transitions. [2018-11-10 01:56:11,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:56:11,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-11-10 01:56:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:11,425 INFO L225 Difference]: With dead ends: 200 [2018-11-10 01:56:11,425 INFO L226 Difference]: Without dead ends: 200 [2018-11-10 01:56:11,426 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-11-10 01:56:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 175. [2018-11-10 01:56:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-11-10 01:56:11,429 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 36 [2018-11-10 01:56:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:11,430 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-11-10 01:56:11,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-11-10 01:56:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 01:56:11,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:11,431 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:11,431 INFO L424 AbstractCegarLoop]: === Iteration 29 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:11,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:11,432 INFO L82 PathProgramCache]: Analyzing trace with hash 987858993, now seen corresponding path program 1 times [2018-11-10 01:56:11,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:11,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:11,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,433 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:11,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:11,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:11,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:11,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:11,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:11,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:11,492 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 5 states. [2018-11-10 01:56:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:11,709 INFO L93 Difference]: Finished difference Result 236 states and 249 transitions. [2018-11-10 01:56:11,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:11,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-11-10 01:56:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:11,711 INFO L225 Difference]: With dead ends: 236 [2018-11-10 01:56:11,711 INFO L226 Difference]: Without dead ends: 236 [2018-11-10 01:56:11,711 INFO L605 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 [2018-11-10 01:56:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-11-10 01:56:11,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 181. [2018-11-10 01:56:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-10 01:56:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 193 transitions. [2018-11-10 01:56:11,714 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 193 transitions. Word has length 37 [2018-11-10 01:56:11,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:11,715 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 193 transitions. [2018-11-10 01:56:11,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 193 transitions. [2018-11-10 01:56:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 01:56:11,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:11,715 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:11,716 INFO L424 AbstractCegarLoop]: === Iteration 30 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:11,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1279290587, now seen corresponding path program 1 times [2018-11-10 01:56:11,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:11,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:11,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:11,719 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:11,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:11,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-10 01:56:11,840 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:11,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 01:56:11,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 01:56:11,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:56:11,841 INFO L87 Difference]: Start difference. First operand 181 states and 193 transitions. Second operand 14 states. [2018-11-10 01:56:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:12,503 INFO L93 Difference]: Finished difference Result 268 states and 282 transitions. [2018-11-10 01:56:12,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-10 01:56:12,504 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-11-10 01:56:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:12,504 INFO L225 Difference]: With dead ends: 268 [2018-11-10 01:56:12,504 INFO L226 Difference]: Without dead ends: 268 [2018-11-10 01:56:12,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2018-11-10 01:56:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-11-10 01:56:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 180. [2018-11-10 01:56:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-10 01:56:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 192 transitions. [2018-11-10 01:56:12,507 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 192 transitions. Word has length 37 [2018-11-10 01:56:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:12,508 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 192 transitions. [2018-11-10 01:56:12,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 01:56:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 192 transitions. [2018-11-10 01:56:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 01:56:12,508 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:12,508 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:12,509 INFO L424 AbstractCegarLoop]: === Iteration 31 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:12,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:12,509 INFO L82 PathProgramCache]: Analyzing trace with hash 203268042, now seen corresponding path program 1 times [2018-11-10 01:56:12,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:12,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:12,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:12,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:12,510 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:12,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:12,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 01:56:12,637 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:12,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 01:56:12,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 01:56:12,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:12,637 INFO L87 Difference]: Start difference. First operand 180 states and 192 transitions. Second operand 8 states. [2018-11-10 01:56:12,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:12,870 INFO L93 Difference]: Finished difference Result 180 states and 192 transitions. [2018-11-10 01:56:12,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:56:12,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-11-10 01:56:12,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:12,871 INFO L225 Difference]: With dead ends: 180 [2018-11-10 01:56:12,871 INFO L226 Difference]: Without dead ends: 180 [2018-11-10 01:56:12,872 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-11-10 01:56:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-11-10 01:56:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2018-11-10 01:56:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:56:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 191 transitions. [2018-11-10 01:56:12,874 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 191 transitions. Word has length 38 [2018-11-10 01:56:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:12,874 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 191 transitions. [2018-11-10 01:56:12,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 01:56:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 191 transitions. [2018-11-10 01:56:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 01:56:12,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:12,875 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] [2018-11-10 01:56:12,875 INFO L424 AbstractCegarLoop]: === Iteration 32 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:12,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:12,875 INFO L82 PathProgramCache]: Analyzing trace with hash -36228480, now seen corresponding path program 1 times [2018-11-10 01:56:12,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:12,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:12,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:12,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:12,877 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:13,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:13,014 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 01:56:13,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-11-10 01:56:13,016 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [13], [15], [17], [19], [21], [23], [25], [27], [29], [33], [35], [38], [161], [165], [170], [174], [182], [184], [186], [191], [195], [203], [209], [210], [211], [213], [261], [263], [265], [267], [320], [321], [322] [2018-11-10 01:56:13,063 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 01:56:13,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 01:56:13,801 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 01:56:13,802 INFO L272 AbstractInterpreter]: Visited 39 different actions 55 times. Merged at 9 different actions 16 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 60 variables. [2018-11-10 01:56:13,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:13,810 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 01:56:13,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:13,810 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:56:13,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:13,819 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 01:56:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:13,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:13,917 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 [2018-11-10 01:56:13,918 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:13,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:13,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:13,979 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 [2018-11-10 01:56:13,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:13,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:13,988 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2018-11-10 01:56:14,014 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 [2018-11-10 01:56:14,017 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 [2018-11-10 01:56:14,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,028 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,028 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-11-10 01:56:14,053 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 19 treesize of output 14 [2018-11-10 01:56:14,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 15 [2018-11-10 01:56:14,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,068 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. [2018-11-10 01:56:14,068 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:31 [2018-11-10 01:56:14,158 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 25 treesize of output 19 [2018-11-10 01:56:14,165 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 [2018-11-10 01:56:14,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,174 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. [2018-11-10 01:56:14,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2018-11-10 01:56:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:14,225 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:56:14,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 01:56:14,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 01:56:14,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 01:56:14,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-11-10 01:56:14,450 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 01:56:14,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-10 01:56:14,453 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 01:56:14,478 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 19 treesize of output 13 [2018-11-10 01:56:14,478 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,480 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 20 treesize of output 14 [2018-11-10 01:56:14,480 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,481 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 18 treesize of output 12 [2018-11-10 01:56:14,482 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2018-11-10 01:56:14,523 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 01:56:14,526 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 16 treesize of output 10 [2018-11-10 01:56:14,527 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,554 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 01:56:14,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 01:56:14,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 01:56:14,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 01:56:14,608 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,618 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 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 01:56:14,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2018-11-10 01:56:14,639 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 01:56:14,642 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 16 treesize of output 10 [2018-11-10 01:56:14,643 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,651 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2018-11-10 01:56:14,652 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 01:56:14,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-10 01:56:14,679 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 01:56:14,699 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 18 treesize of output 12 [2018-11-10 01:56:14,700 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:14,719 INFO L267 ElimStorePlain]: Start of recursive call 14: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 01:56:14,737 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 01:56:14,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts. [2018-11-10 01:56:14,782 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 4 variables, input treesize:49, output treesize:119 [2018-11-10 01:56:16,872 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc1.base_2| Int)) (or (= (select (store |c_#valid| |v_main_#t~malloc1.base_2| 1) c_main_~null~0.base) 1) (= c_main_~null~0.base |v_main_#t~malloc1.base_2|))) (or (= 0 c_main_~null~0.offset) (forall ((v_prenex_6 Int)) (= (select (store |c_#valid| v_prenex_6 1) c_main_~null~0.base) 1)))) is different from false [2018-11-10 01:56:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:16,908 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 01:56:16,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 27 [2018-11-10 01:56:16,908 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 01:56:16,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 01:56:16,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 01:56:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=572, Unknown=1, NotChecked=48, Total=702 [2018-11-10 01:56:16,909 INFO L87 Difference]: Start difference. First operand 179 states and 191 transitions. Second operand 18 states. [2018-11-10 01:56:18,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:18,443 INFO L93 Difference]: Finished difference Result 260 states and 272 transitions. [2018-11-10 01:56:18,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-10 01:56:18,443 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 41 [2018-11-10 01:56:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:18,444 INFO L225 Difference]: With dead ends: 260 [2018-11-10 01:56:18,444 INFO L226 Difference]: Without dead ends: 256 [2018-11-10 01:56:18,445 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=306, Invalid=1257, Unknown=1, NotChecked=76, Total=1640 [2018-11-10 01:56:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-11-10 01:56:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 210. [2018-11-10 01:56:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-11-10 01:56:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 227 transitions. [2018-11-10 01:56:18,459 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 227 transitions. Word has length 41 [2018-11-10 01:56:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:18,460 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 227 transitions. [2018-11-10 01:56:18,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 01:56:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 227 transitions. [2018-11-10 01:56:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 01:56:18,460 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:18,460 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:18,461 INFO L424 AbstractCegarLoop]: === Iteration 33 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:18,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:18,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2121677042, now seen corresponding path program 1 times [2018-11-10 01:56:18,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:18,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:18,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:18,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:18,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:18,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:18,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 01:56:18,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:18,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 01:56:18,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 01:56:18,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:18,578 INFO L87 Difference]: Start difference. First operand 210 states and 227 transitions. Second operand 10 states. [2018-11-10 01:56:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:19,045 INFO L93 Difference]: Finished difference Result 213 states and 230 transitions. [2018-11-10 01:56:19,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 01:56:19,046 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-11-10 01:56:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:19,046 INFO L225 Difference]: With dead ends: 213 [2018-11-10 01:56:19,046 INFO L226 Difference]: Without dead ends: 213 [2018-11-10 01:56:19,047 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2018-11-10 01:56:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-11-10 01:56:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2018-11-10 01:56:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-11-10 01:56:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 224 transitions. [2018-11-10 01:56:19,049 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 224 transitions. Word has length 42 [2018-11-10 01:56:19,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:19,050 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 224 transitions. [2018-11-10 01:56:19,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 01:56:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 224 transitions. [2018-11-10 01:56:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 01:56:19,050 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:19,050 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:19,050 INFO L424 AbstractCegarLoop]: === Iteration 34 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:19,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:19,050 INFO L82 PathProgramCache]: Analyzing trace with hash -350209583, now seen corresponding path program 1 times [2018-11-10 01:56:19,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:19,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:19,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:19,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:19,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:19,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:19,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-10 01:56:19,166 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:19,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 01:56:19,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 01:56:19,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:56:19,166 INFO L87 Difference]: Start difference. First operand 207 states and 224 transitions. Second operand 14 states. [2018-11-10 01:56:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:19,908 INFO L93 Difference]: Finished difference Result 246 states and 257 transitions. [2018-11-10 01:56:19,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-10 01:56:19,908 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2018-11-10 01:56:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:19,909 INFO L225 Difference]: With dead ends: 246 [2018-11-10 01:56:19,909 INFO L226 Difference]: Without dead ends: 246 [2018-11-10 01:56:19,910 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2018-11-10 01:56:19,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-11-10 01:56:19,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 206. [2018-11-10 01:56:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-11-10 01:56:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 223 transitions. [2018-11-10 01:56:19,913 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 223 transitions. Word has length 42 [2018-11-10 01:56:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:19,913 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 223 transitions. [2018-11-10 01:56:19,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 01:56:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 223 transitions. [2018-11-10 01:56:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-10 01:56:19,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:19,914 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, 1, 1] [2018-11-10 01:56:19,915 INFO L424 AbstractCegarLoop]: === Iteration 35 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:19,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:19,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1245550250, now seen corresponding path program 1 times [2018-11-10 01:56:19,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:19,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:19,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:19,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:19,916 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:19,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:19,967 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 01:56:19,967 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-11-10 01:56:19,967 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [13], [15], [17], [19], [21], [23], [25], [27], [29], [33], [35], [38], [161], [165], [170], [174], [182], [184], [186], [191], [195], [203], [207], [209], [211], [213], [261], [263], [265], [267], [273], [277], [317], [319], [320], [321], [322] [2018-11-10 01:56:19,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 01:56:19,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 01:56:20,488 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 01:56:20,489 INFO L272 AbstractInterpreter]: Visited 43 different actions 67 times. Merged at 13 different actions 24 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 61 variables. [2018-11-10 01:56:20,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:20,497 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 01:56:20,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:20,497 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:56:20,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:20,515 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 01:56:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:20,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:20,550 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 [2018-11-10 01:56:20,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:20,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:20,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:20,583 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:20,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:20,598 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 [2018-11-10 01:56:20,598 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:20,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:20,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-11-10 01:56:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:56:20,603 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:56:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:56:20,637 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-10 01:56:20,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [7] total 9 [2018-11-10 01:56:20,637 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:20,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:20,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:20,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:20,638 INFO L87 Difference]: Start difference. First operand 206 states and 223 transitions. Second operand 4 states. [2018-11-10 01:56:20,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:20,758 INFO L93 Difference]: Finished difference Result 242 states and 256 transitions. [2018-11-10 01:56:20,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:56:20,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-11-10 01:56:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:20,760 INFO L225 Difference]: With dead ends: 242 [2018-11-10 01:56:20,760 INFO L226 Difference]: Without dead ends: 242 [2018-11-10 01:56:20,760 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:20,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-10 01:56:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 206. [2018-11-10 01:56:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-11-10 01:56:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 221 transitions. [2018-11-10 01:56:20,764 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 221 transitions. Word has length 44 [2018-11-10 01:56:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:20,764 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 221 transitions. [2018-11-10 01:56:20,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 221 transitions. [2018-11-10 01:56:20,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-10 01:56:20,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:20,765 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:20,766 INFO L424 AbstractCegarLoop]: === Iteration 36 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:20,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:20,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1177832112, now seen corresponding path program 1 times [2018-11-10 01:56:20,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:20,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:20,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:20,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:20,767 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:20,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:20,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 01:56:20,861 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:20,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 01:56:20,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 01:56:20,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:20,862 INFO L87 Difference]: Start difference. First operand 206 states and 221 transitions. Second operand 10 states. [2018-11-10 01:56:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:21,385 INFO L93 Difference]: Finished difference Result 310 states and 333 transitions. [2018-11-10 01:56:21,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 01:56:21,386 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2018-11-10 01:56:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:21,386 INFO L225 Difference]: With dead ends: 310 [2018-11-10 01:56:21,386 INFO L226 Difference]: Without dead ends: 310 [2018-11-10 01:56:21,387 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-11-10 01:56:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-11-10 01:56:21,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 204. [2018-11-10 01:56:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-10 01:56:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 219 transitions. [2018-11-10 01:56:21,389 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 219 transitions. Word has length 44 [2018-11-10 01:56:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:21,389 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 219 transitions. [2018-11-10 01:56:21,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 01:56:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 219 transitions. [2018-11-10 01:56:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 01:56:21,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:21,389 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, 1, 1, 1, 1] [2018-11-10 01:56:21,390 INFO L424 AbstractCegarLoop]: === Iteration 37 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:21,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:21,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1322835033, now seen corresponding path program 1 times [2018-11-10 01:56:21,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:21,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:21,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:21,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:21,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:56:21,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:21,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:21,430 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:21,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:21,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:21,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:21,431 INFO L87 Difference]: Start difference. First operand 204 states and 219 transitions. Second operand 7 states. [2018-11-10 01:56:21,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:21,642 INFO L93 Difference]: Finished difference Result 224 states and 238 transitions. [2018-11-10 01:56:21,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 01:56:21,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-11-10 01:56:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:21,643 INFO L225 Difference]: With dead ends: 224 [2018-11-10 01:56:21,643 INFO L226 Difference]: Without dead ends: 224 [2018-11-10 01:56:21,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2018-11-10 01:56:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-11-10 01:56:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 198. [2018-11-10 01:56:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-11-10 01:56:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions. [2018-11-10 01:56:21,646 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 46 [2018-11-10 01:56:21,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:21,646 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions. [2018-11-10 01:56:21,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:21,646 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions. [2018-11-10 01:56:21,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 01:56:21,647 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:21,647 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:21,647 INFO L424 AbstractCegarLoop]: === Iteration 38 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:21,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:21,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1974702510, now seen corresponding path program 1 times [2018-11-10 01:56:21,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:21,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:21,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:21,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:21,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:21,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:21,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 01:56:21,771 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:21,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:21,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:21,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:21,772 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand 11 states. [2018-11-10 01:56:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:22,560 INFO L93 Difference]: Finished difference Result 317 states and 336 transitions. [2018-11-10 01:56:22,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-10 01:56:22,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2018-11-10 01:56:22,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:22,561 INFO L225 Difference]: With dead ends: 317 [2018-11-10 01:56:22,562 INFO L226 Difference]: Without dead ends: 317 [2018-11-10 01:56:22,562 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2018-11-10 01:56:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-11-10 01:56:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 182. [2018-11-10 01:56:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-10 01:56:22,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2018-11-10 01:56:22,565 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 46 [2018-11-10 01:56:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:22,565 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2018-11-10 01:56:22,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:56:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2018-11-10 01:56:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-10 01:56:22,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:22,566 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:22,566 INFO L424 AbstractCegarLoop]: === Iteration 39 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:22,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:22,567 INFO L82 PathProgramCache]: Analyzing trace with hash 617774493, now seen corresponding path program 1 times [2018-11-10 01:56:22,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:22,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:22,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:22,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:22,568 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:22,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:22,719 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 01:56:22,720 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-11-10 01:56:22,720 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [13], [15], [17], [19], [21], [23], [25], [27], [29], [33], [35], [38], [161], [165], [170], [174], [182], [184], [186], [191], [195], [203], [207], [209], [211], [213], [261], [263], [265], [267], [273], [279], [281], [283], [286], [288], [290], [292], [294], [295], [320], [321], [322] [2018-11-10 01:56:22,723 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 01:56:22,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 01:56:23,276 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 01:56:23,276 INFO L272 AbstractInterpreter]: Visited 49 different actions 72 times. Merged at 13 different actions 21 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 66 variables. [2018-11-10 01:56:23,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:23,278 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 01:56:23,278 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:23,278 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:56:23,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:23,286 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 01:56:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:23,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:23,346 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 [2018-11-10 01:56:23,357 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 [2018-11-10 01:56:23,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,360 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,363 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-10 01:56:23,407 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 [2018-11-10 01:56:23,420 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 [2018-11-10 01:56:23,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:3 [2018-11-10 01:56:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:56:23,448 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:56:23,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-11-10 01:56:23,559 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 8 treesize of output 1 [2018-11-10 01:56:23,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,562 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 16 treesize of output 14 [2018-11-10 01:56:23,563 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 8 treesize of output 1 [2018-11-10 01:56:23,564 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,564 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:23,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 01:56:23,571 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:23, output treesize:28 [2018-11-10 01:56:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:56:23,613 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-10 01:56:23,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [13] total 23 [2018-11-10 01:56:23,613 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:23,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:23,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:23,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2018-11-10 01:56:23,614 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand 6 states. [2018-11-10 01:56:23,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:23,750 INFO L93 Difference]: Finished difference Result 192 states and 201 transitions. [2018-11-10 01:56:23,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:23,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-11-10 01:56:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:23,751 INFO L225 Difference]: With dead ends: 192 [2018-11-10 01:56:23,751 INFO L226 Difference]: Without dead ends: 192 [2018-11-10 01:56:23,751 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2018-11-10 01:56:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-11-10 01:56:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 175. [2018-11-10 01:56:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 183 transitions. [2018-11-10 01:56:23,753 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 183 transitions. Word has length 50 [2018-11-10 01:56:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:23,753 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 183 transitions. [2018-11-10 01:56:23,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 183 transitions. [2018-11-10 01:56:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 01:56:23,753 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:23,753 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:23,754 INFO L424 AbstractCegarLoop]: === Iteration 40 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:23,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:23,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1609285078, now seen corresponding path program 1 times [2018-11-10 01:56:23,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:23,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:23,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:23,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:23,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:23,822 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:23,822 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 01:56:23,823 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-11-10 01:56:23,823 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [13], [15], [17], [19], [21], [23], [25], [27], [29], [33], [35], [38], [161], [165], [170], [174], [182], [184], [186], [191], [195], [203], [207], [209], [211], [213], [261], [263], [265], [267], [273], [279], [280], [281], [283], [304], [306], [308], [310], [312], [320], [321], [322] [2018-11-10 01:56:23,829 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 01:56:23,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 01:56:24,780 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 01:56:24,780 INFO L272 AbstractInterpreter]: Visited 49 different actions 93 times. Merged at 19 different actions 42 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 66 variables. [2018-11-10 01:56:24,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:24,789 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 01:56:24,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:56:24,789 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:56:24,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:24,797 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 01:56:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:24,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:24,849 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 [2018-11-10 01:56:24,857 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 [2018-11-10 01:56:24,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,868 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 [2018-11-10 01:56:24,870 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 [2018-11-10 01:56:24,870 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,872 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,875 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:23, output treesize:1 [2018-11-10 01:56:24,906 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 [2018-11-10 01:56:24,908 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 [2018-11-10 01:56:24,909 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,917 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 [2018-11-10 01:56:24,923 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 [2018-11-10 01:56:24,924 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,927 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:24,931 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 01:56:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:24,952 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:56:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:25,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 01:56:25,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 17 [2018-11-10 01:56:25,092 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 01:56:25,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:25,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:25,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-11-10 01:56:25,093 INFO L87 Difference]: Start difference. First operand 175 states and 183 transitions. Second operand 11 states. [2018-11-10 01:56:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:25,619 INFO L93 Difference]: Finished difference Result 279 states and 293 transitions. [2018-11-10 01:56:25,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-10 01:56:25,619 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2018-11-10 01:56:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:25,620 INFO L225 Difference]: With dead ends: 279 [2018-11-10 01:56:25,620 INFO L226 Difference]: Without dead ends: 279 [2018-11-10 01:56:25,620 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 91 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2018-11-10 01:56:25,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-11-10 01:56:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 188. [2018-11-10 01:56:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-11-10 01:56:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 198 transitions. [2018-11-10 01:56:25,622 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 198 transitions. Word has length 52 [2018-11-10 01:56:25,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:25,622 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 198 transitions. [2018-11-10 01:56:25,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:56:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 198 transitions. [2018-11-10 01:56:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 01:56:25,623 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:25,623 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:25,623 INFO L424 AbstractCegarLoop]: === Iteration 41 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:25,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:25,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1700234314, now seen corresponding path program 1 times [2018-11-10 01:56:25,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:25,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:25,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:25,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:25,624 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:25,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:25,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 01:56:25,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:56:25,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 01:56:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 01:56:25,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:25,695 INFO L87 Difference]: Start difference. First operand 188 states and 198 transitions. Second operand 8 states. [2018-11-10 01:56:25,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:25,926 INFO L93 Difference]: Finished difference Result 193 states and 203 transitions. [2018-11-10 01:56:25,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 01:56:25,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2018-11-10 01:56:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:25,927 INFO L225 Difference]: With dead ends: 193 [2018-11-10 01:56:25,927 INFO L226 Difference]: Without dead ends: 193 [2018-11-10 01:56:25,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:56:25,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-11-10 01:56:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2018-11-10 01:56:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-11-10 01:56:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 195 transitions. [2018-11-10 01:56:25,930 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 195 transitions. Word has length 52 [2018-11-10 01:56:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:25,930 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 195 transitions. [2018-11-10 01:56:25,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 01:56:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 195 transitions. [2018-11-10 01:56:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 01:56:25,931 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:25,931 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:25,931 INFO L424 AbstractCegarLoop]: === Iteration 42 === [mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:25,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1651770590, now seen corresponding path program 1 times [2018-11-10 01:56:25,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:56:25,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:25,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:25,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:56:25,932 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:56:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:56:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:56:25,982 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 01:56:25,996 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:25,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,000 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,000 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,000 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,000 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,001 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,001 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,001 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,002 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,002 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,002 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,002 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,003 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,003 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,003 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,003 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,004 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,004 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,004 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,005 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,005 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,005 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,006 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,006 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,006 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,006 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,007 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,007 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,007 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,008 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,008 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,008 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,008 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,009 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,009 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,009 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,009 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,010 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,010 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,010 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,011 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,011 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,011 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,011 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,012 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,012 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,012 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,012 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,015 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,015 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,015 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,017 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,017 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,017 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,017 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,017 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,018 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,018 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,018 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,018 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,019 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,019 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,019 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,019 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,019 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,023 WARN L387 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-10 01:56:26,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:56:26,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:56:26,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:56:26 BoogieIcfgContainer [2018-11-10 01:56:26,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 01:56:26,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:56:26,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:56:26,048 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:56:26,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:01" (3/4) ... [2018-11-10 01:56:26,062 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 01:56:26,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:56:26,063 INFO L168 Benchmark]: Toolchain (without parser) took 25419.26 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 734.0 MB). Free memory was 955.8 MB in the beginning and 1.6 GB in the end (delta: -642.2 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,064 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:56:26,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.53 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 931.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 931.6 MB in the beginning and 1.2 GB in the end (delta: -257.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,065 INFO L168 Benchmark]: Boogie Preprocessor took 42.97 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: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,066 INFO L168 Benchmark]: RCFGBuilder took 548.81 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: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,066 INFO L168 Benchmark]: TraceAbstraction took 24373.07 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 539.5 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -470.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2018-11-10 01:56:26,066 INFO L168 Benchmark]: Witness Printer took 14.37 ms. Allocated memory is still 1.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:56:26,068 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.53 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 931.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 931.6 MB in the beginning and 1.2 GB in the end (delta: -257.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.97 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: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 548.81 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: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24373.07 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 539.5 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -470.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * Witness Printer took 14.37 ms. Allocated memory is still 1.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * 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)); [L988] CALL null->next = ((void*)0) [L988] RET null->next = ((void*)0) [L989] CALL null->prev = ((void*)0) [L989] RET null->prev = ((void*)0) [L990] CALL null->colour = BLACK [L990] RET null->colour = BLACK [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); [L993] CALL list->next = null [L993] RET list->next = null [L994] CALL list->prev = null [L994] RET list->prev = null [L995] CALL list->colour = BLACK [L995] RET list->colour = BLACK [L997] struct TSLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list [L1030] COND FALSE !(!(null != end)) [L1030] COND FALSE !(0) [L1031] CALL, EXPR end->colour [L1031] RET, EXPR end->colour [L1031] COND FALSE !(!(BLACK == end->colour)) [L1031] COND FALSE !(0) [L1032] COND TRUE null != end [L1034] CALL, EXPR end->colour [L1034] RET, EXPR end->colour [L1034] COND FALSE !(RED == end->colour) [L1041] CALL, EXPR end->next [L1041] RET, EXPR end->next [L1041] end = end->next [L1032] COND FALSE !(null != end) [L1045] COND TRUE null != list [L1047] CALL, EXPR list->colour [L1047] RET, EXPR list->colour [L1047] COND FALSE !(RED == list->colour) [L1056] CALL, EXPR list->next [L1056] RET, EXPR list->next [L1056] end = list->next [L1057] free(list) [L1057] free(list) [L1057] FCALL free(list) [L1058] list = end [L1045] COND FALSE !(null != list) [L1062] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 177 locations, 67 error locations. UNSAFE Result, 24.3s OverallTime, 42 OverallIterations, 2 TraceHistogramMax, 13.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4024 SDtfs, 12425 SDslu, 9862 SDs, 0 SdLazy, 17159 SolverSat, 1327 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 873 GetRequests, 401 SyntacticMatches, 10 SemanticMatches, 462 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.8s AbstIntTime, 4 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 41 MinimizatonAttempts, 2609 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1465 NumberOfCodeBlocks, 1465 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 1550 ConstructedInterpolants, 13 QuantifiedInterpolants, 391327 SizeOfPredicates, 79 NumberOfNonLiveVariables, 1233 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 49 InterpolantComputations, 41 PerfectInterpolantSequences, 19/43 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 0.1.23-1dbac8b [2018-11-10 01:56:27,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:56:27,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:56:27,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:56:27,733 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:56:27,734 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:56:27,735 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:56:27,736 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:56:27,738 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:56:27,738 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:56:27,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:56:27,739 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:56:27,740 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:56:27,741 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:56:27,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:56:27,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:56:27,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:56:27,744 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:56:27,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:56:27,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:56:27,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:56:27,749 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:56:27,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:56:27,751 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:56:27,752 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:56:27,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:56:27,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:56:27,754 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:56:27,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:56:27,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:56:27,756 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:56:27,756 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:56:27,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:56:27,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:56:27,758 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:56:27,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:56:27,759 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-11-10 01:56:27,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:56:27,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:56:27,772 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:56:27,772 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 01:56:27,772 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 01:56:27,772 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 01:56:27,772 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 01:56:27,773 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 01:56:27,774 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 01:56:27,774 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 01:56:27,774 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:56:27,774 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 01:56:27,775 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 01:56:27,776 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:56:27,776 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 01:56:27,776 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 01:56:27,776 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 01:56:27,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:56:27,777 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 01:56:27,777 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:56:27,777 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 01:56:27,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:56:27,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:56:27,779 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:56:27,779 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 01:56:27,779 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:56:27,780 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 01:56:27,780 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_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-11-10 01:56:27,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:56:27,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:56:27,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:56:27,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:56:27,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:56:27,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:27,875 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/feb467e3b/00722ff24a7c4715978712ea559699ca/FLAG454cb7ad0 [2018-11-10 01:56:28,272 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:56:28,272 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:28,280 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/feb467e3b/00722ff24a7c4715978712ea559699ca/FLAG454cb7ad0 [2018-11-10 01:56:28,289 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/data/feb467e3b/00722ff24a7c4715978712ea559699ca [2018-11-10 01:56:28,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:56:28,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 01:56:28,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:56:28,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:56:28,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:56:28,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150901fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28, skipping insertion in model container [2018-11-10 01:56:28,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:56:28,345 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:56:28,575 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:56:28,587 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:56:28,627 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:56:28,666 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:56:28,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28 WrapperNode [2018-11-10 01:56:28,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:56:28,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 01:56:28,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 01:56:28,668 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 01:56:28,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 01:56:28,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:56:28,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:56:28,763 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:56:28,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... [2018-11-10 01:56:28,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:56:28,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:56:28,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:56:28,805 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:56:28,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:56:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 01:56:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 01:56:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 01:56:28,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 01:56:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:56:28,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:56:29,711 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:56:29,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:29 BoogieIcfgContainer [2018-11-10 01:56:29,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:56:29,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 01:56:29,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 01:56:29,716 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 01:56:29,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:56:28" (1/3) ... [2018-11-10 01:56:29,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8969ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:29, skipping insertion in model container [2018-11-10 01:56:29,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:28" (2/3) ... [2018-11-10 01:56:29,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8969ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:29, skipping insertion in model container [2018-11-10 01:56:29,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:29" (3/3) ... [2018-11-10 01:56:29,719 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-10 01:56:29,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 01:56:29,734 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-11-10 01:56:29,747 INFO L257 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2018-11-10 01:56:29,767 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 01:56:29,768 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 01:56:29,768 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 01:56:29,768 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 01:56:29,768 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 01:56:29,768 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 01:56:29,768 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 01:56:29,769 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 01:56:29,769 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 01:56:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2018-11-10 01:56:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 01:56:29,794 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:29,795 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:29,798 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:29,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:29,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1399408321, now seen corresponding path program 1 times [2018-11-10 01:56:29,809 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:29,809 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:29,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:29,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:29,922 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 [2018-11-10 01:56:29,924 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:29,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:29,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:29,939 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:29,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:29,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:56:29,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:56:29,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:56:29,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:29,957 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2018-11-10 01:56:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:30,440 INFO L93 Difference]: Finished difference Result 201 states and 208 transitions. [2018-11-10 01:56:30,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:56:30,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-10 01:56:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:30,452 INFO L225 Difference]: With dead ends: 201 [2018-11-10 01:56:30,453 INFO L226 Difference]: Without dead ends: 197 [2018-11-10 01:56:30,454 INFO L605 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 [2018-11-10 01:56:30,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-11-10 01:56:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 171. [2018-11-10 01:56:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-11-10 01:56:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 176 transitions. [2018-11-10 01:56:30,495 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 176 transitions. Word has length 7 [2018-11-10 01:56:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:30,496 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 176 transitions. [2018-11-10 01:56:30,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:56:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 176 transitions. [2018-11-10 01:56:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 01:56:30,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:30,497 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:30,499 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:30,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:30,499 INFO L82 PathProgramCache]: Analyzing trace with hash 431985030, now seen corresponding path program 1 times [2018-11-10 01:56:30,500 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:30,500 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:30,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:30,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:30,562 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 [2018-11-10 01:56:30,562 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:30,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:30,578 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 01:56:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:30,588 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:30,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:30,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:56:30,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:56:30,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:56:30,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:30,593 INFO L87 Difference]: Start difference. First operand 171 states and 176 transitions. Second operand 3 states. [2018-11-10 01:56:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:30,986 INFO L93 Difference]: Finished difference Result 169 states and 174 transitions. [2018-11-10 01:56:30,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:56:30,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 01:56:30,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:30,988 INFO L225 Difference]: With dead ends: 169 [2018-11-10 01:56:30,988 INFO L226 Difference]: Without dead ends: 169 [2018-11-10 01:56:30,989 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-11-10 01:56:30,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-11-10 01:56:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-11-10 01:56:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 174 transitions. [2018-11-10 01:56:30,999 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 174 transitions. Word has length 8 [2018-11-10 01:56:30,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:31,000 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 174 transitions. [2018-11-10 01:56:31,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:56:31,000 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 174 transitions. [2018-11-10 01:56:31,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 01:56:31,000 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:31,000 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:31,003 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:31,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:31,004 INFO L82 PathProgramCache]: Analyzing trace with hash 506634083, now seen corresponding path program 1 times [2018-11-10 01:56:31,004 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:31,004 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:31,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:31,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:31,082 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 [2018-11-10 01:56:31,082 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:31,088 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:31,088 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:31,108 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:31,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:31,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:31,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:31,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:31,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:31,111 INFO L87 Difference]: Start difference. First operand 169 states and 174 transitions. Second operand 5 states. [2018-11-10 01:56:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:31,671 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2018-11-10 01:56:31,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:31,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-10 01:56:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:31,672 INFO L225 Difference]: With dead ends: 194 [2018-11-10 01:56:31,673 INFO L226 Difference]: Without dead ends: 194 [2018-11-10 01:56:31,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-11-10 01:56:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 168. [2018-11-10 01:56:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-10 01:56:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 173 transitions. [2018-11-10 01:56:31,681 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 173 transitions. Word has length 9 [2018-11-10 01:56:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:31,682 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 173 transitions. [2018-11-10 01:56:31,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 173 transitions. [2018-11-10 01:56:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 01:56:31,682 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:31,683 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:31,684 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:31,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1474212568, now seen corresponding path program 1 times [2018-11-10 01:56:31,685 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:31,685 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:31,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:31,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:31,745 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 [2018-11-10 01:56:31,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:31,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:31,755 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:31,793 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:31,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:31,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:31,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:31,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:31,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:31,798 INFO L87 Difference]: Start difference. First operand 168 states and 173 transitions. Second operand 4 states. [2018-11-10 01:56:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:32,343 INFO L93 Difference]: Finished difference Result 167 states and 172 transitions. [2018-11-10 01:56:32,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:56:32,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 01:56:32,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:32,344 INFO L225 Difference]: With dead ends: 167 [2018-11-10 01:56:32,344 INFO L226 Difference]: Without dead ends: 167 [2018-11-10 01:56:32,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-10 01:56:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-11-10 01:56:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-10 01:56:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2018-11-10 01:56:32,349 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 10 [2018-11-10 01:56:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:32,349 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2018-11-10 01:56:32,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2018-11-10 01:56:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 01:56:32,350 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:32,350 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:32,351 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:32,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:32,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1544050693, now seen corresponding path program 1 times [2018-11-10 01:56:32,351 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:32,352 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:32,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:32,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:32,407 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 [2018-11-10 01:56:32,407 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:32,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:32,412 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:32,428 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:32,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:32,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:32,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:32,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:32,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:32,432 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand 5 states. [2018-11-10 01:56:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:33,082 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2018-11-10 01:56:33,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:33,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 01:56:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:33,083 INFO L225 Difference]: With dead ends: 192 [2018-11-10 01:56:33,083 INFO L226 Difference]: Without dead ends: 192 [2018-11-10 01:56:33,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-11-10 01:56:33,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 166. [2018-11-10 01:56:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-11-10 01:56:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2018-11-10 01:56:33,089 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 11 [2018-11-10 01:56:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:33,089 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2018-11-10 01:56:33,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2018-11-10 01:56:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 01:56:33,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:33,090 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:33,092 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:33,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:33,092 INFO L82 PathProgramCache]: Analyzing trace with hash 620931274, now seen corresponding path program 1 times [2018-11-10 01:56:33,092 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:33,093 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:33,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:33,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:33,156 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 [2018-11-10 01:56:33,156 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:33,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:33,161 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:33,177 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:33,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:33,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:33,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:33,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:33,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:33,179 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand 4 states. [2018-11-10 01:56:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:33,652 INFO L93 Difference]: Finished difference Result 165 states and 170 transitions. [2018-11-10 01:56:33,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:56:33,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-10 01:56:33,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:33,653 INFO L225 Difference]: With dead ends: 165 [2018-11-10 01:56:33,653 INFO L226 Difference]: Without dead ends: 165 [2018-11-10 01:56:33,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:33,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-11-10 01:56:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-11-10 01:56:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-11-10 01:56:33,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 170 transitions. [2018-11-10 01:56:33,658 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 170 transitions. Word has length 12 [2018-11-10 01:56:33,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:33,659 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 170 transitions. [2018-11-10 01:56:33,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 170 transitions. [2018-11-10 01:56:33,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 01:56:33,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:33,659 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:33,660 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:33,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:33,660 INFO L82 PathProgramCache]: Analyzing trace with hash -260511415, now seen corresponding path program 1 times [2018-11-10 01:56:33,661 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:33,661 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:33,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:33,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:33,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 01:56:33,735 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:33,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:33,736 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:33,742 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:33,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:33,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:33,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:33,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:33,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:33,745 INFO L87 Difference]: Start difference. First operand 165 states and 170 transitions. Second operand 4 states. [2018-11-10 01:56:34,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:34,127 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2018-11-10 01:56:34,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:34,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-10 01:56:34,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:34,128 INFO L225 Difference]: With dead ends: 188 [2018-11-10 01:56:34,128 INFO L226 Difference]: Without dead ends: 188 [2018-11-10 01:56:34,129 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-11-10 01:56:34,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 177. [2018-11-10 01:56:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 192 transitions. [2018-11-10 01:56:34,132 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 192 transitions. Word has length 15 [2018-11-10 01:56:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:34,132 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 192 transitions. [2018-11-10 01:56:34,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 192 transitions. [2018-11-10 01:56:34,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 01:56:34,133 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:34,133 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:34,134 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:34,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:34,135 INFO L82 PathProgramCache]: Analyzing trace with hash 514080782, now seen corresponding path program 1 times [2018-11-10 01:56:34,135 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:34,135 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:34,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:34,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:34,228 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 [2018-11-10 01:56:34,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:34,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:34,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:34,253 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:34,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:34,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:34,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:34,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:34,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:34,256 INFO L87 Difference]: Start difference. First operand 177 states and 192 transitions. Second operand 4 states. [2018-11-10 01:56:34,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:34,819 INFO L93 Difference]: Finished difference Result 288 states and 299 transitions. [2018-11-10 01:56:34,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:34,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-10 01:56:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:34,820 INFO L225 Difference]: With dead ends: 288 [2018-11-10 01:56:34,821 INFO L226 Difference]: Without dead ends: 288 [2018-11-10 01:56:34,821 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:34,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-11-10 01:56:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 176. [2018-11-10 01:56:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:56:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-11-10 01:56:34,825 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 16 [2018-11-10 01:56:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:34,825 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-11-10 01:56:34,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-11-10 01:56:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 01:56:34,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:34,826 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:34,827 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:34,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:34,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1243364885, now seen corresponding path program 1 times [2018-11-10 01:56:34,828 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:34,828 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:34,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:34,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:34,912 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 [2018-11-10 01:56:34,912 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:34,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:34,914 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:34,923 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:34,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:34,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:34,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:34,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:34,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:34,925 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 4 states. [2018-11-10 01:56:35,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:35,302 INFO L93 Difference]: Finished difference Result 184 states and 190 transitions. [2018-11-10 01:56:35,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:35,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 01:56:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:35,303 INFO L225 Difference]: With dead ends: 184 [2018-11-10 01:56:35,303 INFO L226 Difference]: Without dead ends: 184 [2018-11-10 01:56:35,303 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:35,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-10 01:56:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175. [2018-11-10 01:56:35,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-11-10 01:56:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-11-10 01:56:35,306 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 17 [2018-11-10 01:56:35,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:35,307 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-11-10 01:56:35,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-11-10 01:56:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 01:56:35,307 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:35,307 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:35,309 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:35,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:35,309 INFO L82 PathProgramCache]: Analyzing trace with hash 110394288, now seen corresponding path program 1 times [2018-11-10 01:56:35,309 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:35,309 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:35,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:35,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:35,434 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 [2018-11-10 01:56:35,434 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:35,438 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:35,439 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:35,461 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:35,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:35,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:35,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:35,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:35,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:35,464 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 4 states. [2018-11-10 01:56:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:36,230 INFO L93 Difference]: Finished difference Result 307 states and 319 transitions. [2018-11-10 01:56:36,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:36,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-10 01:56:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:36,233 INFO L225 Difference]: With dead ends: 307 [2018-11-10 01:56:36,233 INFO L226 Difference]: Without dead ends: 307 [2018-11-10 01:56:36,233 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:36,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-11-10 01:56:36,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 174. [2018-11-10 01:56:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-10 01:56:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 187 transitions. [2018-11-10 01:56:36,239 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 187 transitions. Word has length 18 [2018-11-10 01:56:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:36,239 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 187 transitions. [2018-11-10 01:56:36,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 187 transitions. [2018-11-10 01:56:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 01:56:36,240 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:36,240 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] [2018-11-10 01:56:36,241 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:36,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1188652175, now seen corresponding path program 1 times [2018-11-10 01:56:36,242 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:36,242 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:36,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:36,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:36,434 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 [2018-11-10 01:56:36,434 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:36,438 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:36,438 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:36,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-10 01:56:36,456 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:36,461 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. [2018-11-10 01:56:36,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-11-10 01:56:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:36,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:36,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:36,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:36,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:36,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:36,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:36,490 INFO L87 Difference]: Start difference. First operand 174 states and 187 transitions. Second operand 5 states. [2018-11-10 01:56:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:37,175 INFO L93 Difference]: Finished difference Result 235 states and 245 transitions. [2018-11-10 01:56:37,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:37,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-11-10 01:56:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:37,177 INFO L225 Difference]: With dead ends: 235 [2018-11-10 01:56:37,177 INFO L226 Difference]: Without dead ends: 235 [2018-11-10 01:56:37,177 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-11-10 01:56:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 177. [2018-11-10 01:56:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 191 transitions. [2018-11-10 01:56:37,180 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 191 transitions. Word has length 21 [2018-11-10 01:56:37,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:37,181 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 191 transitions. [2018-11-10 01:56:37,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 191 transitions. [2018-11-10 01:56:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 01:56:37,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:37,182 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] [2018-11-10 01:56:37,183 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:37,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:37,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1806488312, now seen corresponding path program 1 times [2018-11-10 01:56:37,183 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:37,183 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:37,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:37,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:37,355 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 [2018-11-10 01:56:37,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,372 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 [2018-11-10 01:56:37,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-10 01:56:37,403 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:37,404 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:37,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-10 01:56:37,405 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,422 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 [2018-11-10 01:56:37,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,435 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:37,435 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-10 01:56:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:37,453 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:37,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:37,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:37,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:37,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:37,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:37,462 INFO L87 Difference]: Start difference. First operand 177 states and 191 transitions. Second operand 5 states. [2018-11-10 01:56:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:38,469 INFO L93 Difference]: Finished difference Result 234 states and 244 transitions. [2018-11-10 01:56:38,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:38,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-10 01:56:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:38,470 INFO L225 Difference]: With dead ends: 234 [2018-11-10 01:56:38,470 INFO L226 Difference]: Without dead ends: 234 [2018-11-10 01:56:38,471 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-11-10 01:56:38,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 178. [2018-11-10 01:56:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:56:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 192 transitions. [2018-11-10 01:56:38,474 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 192 transitions. Word has length 22 [2018-11-10 01:56:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:38,475 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 192 transitions. [2018-11-10 01:56:38,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 192 transitions. [2018-11-10 01:56:38,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 01:56:38,476 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:38,476 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] [2018-11-10 01:56:38,476 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:38,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:38,477 INFO L82 PathProgramCache]: Analyzing trace with hash 166562899, now seen corresponding path program 1 times [2018-11-10 01:56:38,477 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:38,477 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:38,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:38,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:38,602 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:38,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:38,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:38,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:56:38,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:56:38,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:56:38,604 INFO L87 Difference]: Start difference. First operand 178 states and 192 transitions. Second operand 4 states. [2018-11-10 01:56:39,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:39,118 INFO L93 Difference]: Finished difference Result 205 states and 222 transitions. [2018-11-10 01:56:39,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:56:39,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-10 01:56:39,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:39,120 INFO L225 Difference]: With dead ends: 205 [2018-11-10 01:56:39,120 INFO L226 Difference]: Without dead ends: 205 [2018-11-10 01:56:39,120 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:39,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-10 01:56:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 176. [2018-11-10 01:56:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:56:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 190 transitions. [2018-11-10 01:56:39,124 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 190 transitions. Word has length 23 [2018-11-10 01:56:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:39,125 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 190 transitions. [2018-11-10 01:56:39,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:56:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 190 transitions. [2018-11-10 01:56:39,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 01:56:39,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:39,125 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] [2018-11-10 01:56:39,126 INFO L424 AbstractCegarLoop]: === Iteration 14 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:39,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:39,126 INFO L82 PathProgramCache]: Analyzing trace with hash 868482650, now seen corresponding path program 1 times [2018-11-10 01:56:39,127 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:39,127 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:39,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:39,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:39,315 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:39,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:39,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:56:39,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:56:39,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:56:39,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:56:39,317 INFO L87 Difference]: Start difference. First operand 176 states and 190 transitions. Second operand 6 states. [2018-11-10 01:56:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:40,056 INFO L93 Difference]: Finished difference Result 248 states and 259 transitions. [2018-11-10 01:56:40,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:40,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-10 01:56:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:40,059 INFO L225 Difference]: With dead ends: 248 [2018-11-10 01:56:40,059 INFO L226 Difference]: Without dead ends: 248 [2018-11-10 01:56:40,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:56:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-11-10 01:56:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 178. [2018-11-10 01:56:40,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:56:40,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 192 transitions. [2018-11-10 01:56:40,063 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 192 transitions. Word has length 24 [2018-11-10 01:56:40,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:40,063 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 192 transitions. [2018-11-10 01:56:40,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:56:40,064 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 192 transitions. [2018-11-10 01:56:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 01:56:40,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:40,064 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:40,065 INFO L424 AbstractCegarLoop]: === Iteration 15 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:40,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:40,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1153158453, now seen corresponding path program 1 times [2018-11-10 01:56:40,065 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:40,065 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:40,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:40,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:40,220 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 [2018-11-10 01:56:40,220 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,229 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-10 01:56:40,246 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 [2018-11-10 01:56:40,248 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 [2018-11-10 01:56:40,248 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,257 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:13 [2018-11-10 01:56:40,269 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 [2018-11-10 01:56:40,272 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 [2018-11-10 01:56:40,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,274 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:40,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2018-11-10 01:56:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:40,284 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:40,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:40,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:40,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:40,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:40,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:40,286 INFO L87 Difference]: Start difference. First operand 178 states and 192 transitions. Second operand 7 states. [2018-11-10 01:56:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:41,267 INFO L93 Difference]: Finished difference Result 247 states and 258 transitions. [2018-11-10 01:56:41,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 01:56:41,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-10 01:56:41,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:41,268 INFO L225 Difference]: With dead ends: 247 [2018-11-10 01:56:41,268 INFO L226 Difference]: Without dead ends: 247 [2018-11-10 01:56:41,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-10 01:56:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-10 01:56:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 179. [2018-11-10 01:56:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:56:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2018-11-10 01:56:41,272 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 25 [2018-11-10 01:56:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:41,272 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2018-11-10 01:56:41,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2018-11-10 01:56:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 01:56:41,272 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:41,273 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:41,273 INFO L424 AbstractCegarLoop]: === Iteration 16 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:41,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:41,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1159366498, now seen corresponding path program 1 times [2018-11-10 01:56:41,273 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:41,274 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:41,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:41,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:41,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 01:56:41,376 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:41,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:41,377 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:56:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:41,390 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:41,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:41,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:41,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:41,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:41,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:41,393 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 5 states. [2018-11-10 01:56:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:42,367 INFO L93 Difference]: Finished difference Result 266 states and 277 transitions. [2018-11-10 01:56:42,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:42,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-10 01:56:42,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:42,369 INFO L225 Difference]: With dead ends: 266 [2018-11-10 01:56:42,369 INFO L226 Difference]: Without dead ends: 266 [2018-11-10 01:56:42,369 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-11-10 01:56:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 181. [2018-11-10 01:56:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-10 01:56:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2018-11-10 01:56:42,373 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 26 [2018-11-10 01:56:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:42,373 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2018-11-10 01:56:42,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2018-11-10 01:56:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 01:56:42,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:42,374 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:42,375 INFO L424 AbstractCegarLoop]: === Iteration 17 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:42,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:42,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1388173756, now seen corresponding path program 1 times [2018-11-10 01:56:42,375 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:42,375 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:42,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:42,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:42,556 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 [2018-11-10 01:56:42,556 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,568 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-11-10 01:56:42,598 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 [2018-11-10 01:56:42,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 01:56:42,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,623 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 [2018-11-10 01:56:42,626 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 [2018-11-10 01:56:42,626 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:33, output treesize:20 [2018-11-10 01:56:42,657 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 [2018-11-10 01:56:42,660 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 [2018-11-10 01:56:42,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,675 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 [2018-11-10 01:56:42,677 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 [2018-11-10 01:56:42,678 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,680 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:42,686 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:14 [2018-11-10 01:56:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:42,702 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:42,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:42,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:42,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:42,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:42,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:42,707 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand 7 states. [2018-11-10 01:56:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:43,556 INFO L93 Difference]: Finished difference Result 242 states and 253 transitions. [2018-11-10 01:56:43,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:56:43,557 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-10 01:56:43,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:43,558 INFO L225 Difference]: With dead ends: 242 [2018-11-10 01:56:43,558 INFO L226 Difference]: Without dead ends: 242 [2018-11-10 01:56:43,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-11-10 01:56:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-10 01:56:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 182. [2018-11-10 01:56:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-10 01:56:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 196 transitions. [2018-11-10 01:56:43,561 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 196 transitions. Word has length 26 [2018-11-10 01:56:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:43,561 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 196 transitions. [2018-11-10 01:56:43,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 196 transitions. [2018-11-10 01:56:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:56:43,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:43,562 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] [2018-11-10 01:56:43,562 INFO L424 AbstractCegarLoop]: === Iteration 18 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:43,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:43,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1580622855, now seen corresponding path program 1 times [2018-11-10 01:56:43,562 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:43,563 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:43,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:43,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:43,679 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 [2018-11-10 01:56:43,680 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:43,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:43,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:43,725 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:43,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:43,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:43,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:43,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:43,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:43,734 INFO L87 Difference]: Start difference. First operand 182 states and 196 transitions. Second operand 5 states. [2018-11-10 01:56:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:44,516 INFO L93 Difference]: Finished difference Result 244 states and 255 transitions. [2018-11-10 01:56:44,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:56:44,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-10 01:56:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:44,517 INFO L225 Difference]: With dead ends: 244 [2018-11-10 01:56:44,517 INFO L226 Difference]: Without dead ends: 244 [2018-11-10 01:56:44,518 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-11-10 01:56:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 182. [2018-11-10 01:56:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-10 01:56:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 195 transitions. [2018-11-10 01:56:44,521 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 195 transitions. Word has length 27 [2018-11-10 01:56:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:44,521 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 195 transitions. [2018-11-10 01:56:44,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 195 transitions. [2018-11-10 01:56:44,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:56:44,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:44,522 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] [2018-11-10 01:56:44,522 INFO L424 AbstractCegarLoop]: === Iteration 19 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:44,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:44,523 INFO L82 PathProgramCache]: Analyzing trace with hash 83713559, now seen corresponding path program 1 times [2018-11-10 01:56:44,523 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:44,523 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:44,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:44,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:44,663 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:44,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:44,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:44,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:44,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:44,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:44,665 INFO L87 Difference]: Start difference. First operand 182 states and 195 transitions. Second operand 5 states. [2018-11-10 01:56:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:45,306 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2018-11-10 01:56:45,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:45,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-10 01:56:45,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:45,307 INFO L225 Difference]: With dead ends: 200 [2018-11-10 01:56:45,307 INFO L226 Difference]: Without dead ends: 200 [2018-11-10 01:56:45,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-11-10 01:56:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 177. [2018-11-10 01:56:45,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:56:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-11-10 01:56:45,310 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 27 [2018-11-10 01:56:45,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:45,310 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-11-10 01:56:45,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:45,310 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-11-10 01:56:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 01:56:45,310 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:45,310 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:56:45,311 INFO L424 AbstractCegarLoop]: === Iteration 20 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:45,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:45,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1699846882, now seen corresponding path program 1 times [2018-11-10 01:56:45,311 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:45,312 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:45,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:45,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:45,547 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:45,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:45,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:56:45,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:56:45,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:56:45,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:56:45,550 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 7 states. [2018-11-10 01:56:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:46,572 INFO L93 Difference]: Finished difference Result 281 states and 296 transitions. [2018-11-10 01:56:46,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:56:46,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-10 01:56:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:46,573 INFO L225 Difference]: With dead ends: 281 [2018-11-10 01:56:46,573 INFO L226 Difference]: Without dead ends: 281 [2018-11-10 01:56:46,574 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:46,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-11-10 01:56:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 179. [2018-11-10 01:56:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:56:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2018-11-10 01:56:46,576 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 28 [2018-11-10 01:56:46,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:46,576 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2018-11-10 01:56:46,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:56:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2018-11-10 01:56:46,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 01:56:46,577 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:46,577 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] [2018-11-10 01:56:46,577 INFO L424 AbstractCegarLoop]: === Iteration 21 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:46,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:46,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1155645703, now seen corresponding path program 1 times [2018-11-10 01:56:46,578 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:46,578 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/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 [2018-11-10 01:56:46,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:46,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:46,844 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 [2018-11-10 01:56:46,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,848 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:46,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:46,873 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:46,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 01:56:46,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,887 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-10 01:56:46,909 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 [2018-11-10 01:56:46,912 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 [2018-11-10 01:56:46,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:46,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:32 [2018-11-10 01:56:46,992 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 37 treesize of output 33 [2018-11-10 01:56:46,995 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 12 treesize of output 11 [2018-11-10 01:56:46,995 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:47,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:47,021 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:47,021 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:47, output treesize:28 [2018-11-10 01:56:47,042 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 25 treesize of output 19 [2018-11-10 01:56:47,046 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 [2018-11-10 01:56:47,046 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:47,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:47,061 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. [2018-11-10 01:56:47,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:17 [2018-11-10 01:56:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:47,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:47,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:47,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 01:56:47,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 01:56:47,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 01:56:47,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:47,084 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand 9 states. [2018-11-10 01:56:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:48,701 INFO L93 Difference]: Finished difference Result 328 states and 346 transitions. [2018-11-10 01:56:48,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:56:48,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-11-10 01:56:48,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:48,704 INFO L225 Difference]: With dead ends: 328 [2018-11-10 01:56:48,704 INFO L226 Difference]: Without dead ends: 328 [2018-11-10 01:56:48,705 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2018-11-10 01:56:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-11-10 01:56:48,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 180. [2018-11-10 01:56:48,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-10 01:56:48,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 193 transitions. [2018-11-10 01:56:48,710 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 193 transitions. Word has length 29 [2018-11-10 01:56:48,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:48,710 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 193 transitions. [2018-11-10 01:56:48,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 01:56:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 193 transitions. [2018-11-10 01:56:48,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 01:56:48,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:48,710 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] [2018-11-10 01:56:48,711 INFO L424 AbstractCegarLoop]: === Iteration 22 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:48,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:48,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1465278336, now seen corresponding path program 1 times [2018-11-10 01:56:48,711 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:48,711 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 23 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 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:48,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:48,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:48,978 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 [2018-11-10 01:56:48,978 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:48,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:48,995 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:49,014 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:49,016 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:49,016 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 [2018-11-10 01:56:49,017 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,036 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 [2018-11-10 01:56:49,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,052 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-11-10 01:56:49,085 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 [2018-11-10 01:56:49,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 01:56:49,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,092 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,115 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 [2018-11-10 01:56:49,118 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 [2018-11-10 01:56:49,118 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,121 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,147 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:34 [2018-11-10 01:56:49,209 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 27 treesize of output 28 [2018-11-10 01:56:49,212 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 12 treesize of output 11 [2018-11-10 01:56:49,212 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,248 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 50 treesize of output 46 [2018-11-10 01:56:49,251 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 12 treesize of output 11 [2018-11-10 01:56:49,252 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,264 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,281 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:68, output treesize:30 [2018-11-10 01:56:49,303 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 [2018-11-10 01:56:49,310 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 [2018-11-10 01:56:49,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,324 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 25 treesize of output 19 [2018-11-10 01:56:49,327 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 [2018-11-10 01:56:49,327 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,332 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:49,340 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:12 [2018-11-10 01:56:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:49,360 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:49,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:49,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 01:56:49,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 01:56:49,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 01:56:49,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:56:49,363 INFO L87 Difference]: Start difference. First operand 180 states and 193 transitions. Second operand 9 states. [2018-11-10 01:56:51,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:51,522 INFO L93 Difference]: Finished difference Result 361 states and 380 transitions. [2018-11-10 01:56:51,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 01:56:51,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-10 01:56:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:51,523 INFO L225 Difference]: With dead ends: 361 [2018-11-10 01:56:51,523 INFO L226 Difference]: Without dead ends: 361 [2018-11-10 01:56:51,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-11-10 01:56:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-11-10 01:56:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 181. [2018-11-10 01:56:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-10 01:56:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 194 transitions. [2018-11-10 01:56:51,527 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 194 transitions. Word has length 30 [2018-11-10 01:56:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:51,527 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 194 transitions. [2018-11-10 01:56:51,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 01:56:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 194 transitions. [2018-11-10 01:56:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 01:56:51,528 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:51,528 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] [2018-11-10 01:56:51,528 INFO L424 AbstractCegarLoop]: === Iteration 23 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:51,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:51,529 INFO L82 PathProgramCache]: Analyzing trace with hash 616795330, now seen corresponding path program 1 times [2018-11-10 01:56:51,529 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:51,529 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 24 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 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:51,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:51,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:51,680 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 [2018-11-10 01:56:51,682 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 [2018-11-10 01:56:51,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:51,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:51,684 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:51,684 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:3 [2018-11-10 01:56:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:51,696 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:51,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:51,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:56:51,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:56:51,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:56:51,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:56:51,698 INFO L87 Difference]: Start difference. First operand 181 states and 194 transitions. Second operand 5 states. [2018-11-10 01:56:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:52,244 INFO L93 Difference]: Finished difference Result 186 states and 194 transitions. [2018-11-10 01:56:52,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:56:52,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-10 01:56:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:52,245 INFO L225 Difference]: With dead ends: 186 [2018-11-10 01:56:52,245 INFO L226 Difference]: Without dead ends: 186 [2018-11-10 01:56:52,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-10 01:56:52,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 178. [2018-11-10 01:56:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:56:52,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2018-11-10 01:56:52,248 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 32 [2018-11-10 01:56:52,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:52,248 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2018-11-10 01:56:52,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:56:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2018-11-10 01:56:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 01:56:52,249 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:52,249 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] [2018-11-10 01:56:52,250 INFO L424 AbstractCegarLoop]: === Iteration 24 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:52,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:52,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1940786148, now seen corresponding path program 1 times [2018-11-10 01:56:52,250 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:52,250 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 25 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 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:52,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:52,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:52,559 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 [2018-11-10 01:56:52,560 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,569 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:52,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:52,598 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:52,599 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 [2018-11-10 01:56:52,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,620 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 [2018-11-10 01:56:52,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-11-10 01:56:52,679 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 [2018-11-10 01:56:52,683 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 [2018-11-10 01:56:52,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,716 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 [2018-11-10 01:56:52,719 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 [2018-11-10 01:56:52,719 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,723 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,739 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:34 [2018-11-10 01:56:52,802 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 27 treesize of output 28 [2018-11-10 01:56:52,807 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 12 treesize of output 11 [2018-11-10 01:56:52,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,849 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 50 treesize of output 46 [2018-11-10 01:56:52,852 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 12 treesize of output 11 [2018-11-10 01:56:52,853 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,865 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,883 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:68, output treesize:30 [2018-11-10 01:56:52,908 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 [2018-11-10 01:56:52,910 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 [2018-11-10 01:56:52,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,913 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-10 01:56:52,931 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 [2018-11-10 01:56:52,932 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,939 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:52,949 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:12 [2018-11-10 01:56:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:53,009 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:53,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:53,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 01:56:53,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:53,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:53,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:53,012 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 11 states. [2018-11-10 01:56:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:55,831 INFO L93 Difference]: Finished difference Result 389 states and 409 transitions. [2018-11-10 01:56:55,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 01:56:55,831 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2018-11-10 01:56:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:55,832 INFO L225 Difference]: With dead ends: 389 [2018-11-10 01:56:55,832 INFO L226 Difference]: Without dead ends: 389 [2018-11-10 01:56:55,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-11-10 01:56:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-11-10 01:56:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 183. [2018-11-10 01:56:55,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-11-10 01:56:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 197 transitions. [2018-11-10 01:56:55,835 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 197 transitions. Word has length 33 [2018-11-10 01:56:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:55,836 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 197 transitions. [2018-11-10 01:56:55,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:56:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 197 transitions. [2018-11-10 01:56:55,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 01:56:55,836 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:55,836 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] [2018-11-10 01:56:55,837 INFO L424 AbstractCegarLoop]: === Iteration 25 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:55,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:55,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1762399833, now seen corresponding path program 1 times [2018-11-10 01:56:55,837 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:55,838 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 26 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 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:55,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:55,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:55,979 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 [2018-11-10 01:56:55,981 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 [2018-11-10 01:56:55,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:55,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:55,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:55,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:1 [2018-11-10 01:56:56,050 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 [2018-11-10 01:56:56,052 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 [2018-11-10 01:56:56,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:56,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:56,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:56,055 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-10 01:56:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:56,068 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:56,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:56,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 01:56:56,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 01:56:56,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 01:56:56,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:56:56,070 INFO L87 Difference]: Start difference. First operand 183 states and 197 transitions. Second operand 8 states. [2018-11-10 01:56:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:57,265 INFO L93 Difference]: Finished difference Result 304 states and 326 transitions. [2018-11-10 01:56:57,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 01:56:57,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-11-10 01:56:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:57,267 INFO L225 Difference]: With dead ends: 304 [2018-11-10 01:56:57,267 INFO L226 Difference]: Without dead ends: 304 [2018-11-10 01:56:57,267 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-11-10 01:56:57,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-11-10 01:56:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 184. [2018-11-10 01:56:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-11-10 01:56:57,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 198 transitions. [2018-11-10 01:56:57,271 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 198 transitions. Word has length 35 [2018-11-10 01:56:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:57,271 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 198 transitions. [2018-11-10 01:56:57,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 01:56:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 198 transitions. [2018-11-10 01:56:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 01:56:57,272 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:57,272 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] [2018-11-10 01:56:57,272 INFO L424 AbstractCegarLoop]: === Iteration 26 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:57,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:57,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1762335096, now seen corresponding path program 1 times [2018-11-10 01:56:57,273 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:57,273 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 27 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 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:57,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:57,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:57,340 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:57,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:57,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:56:57,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:56:57,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:56:57,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:57,342 INFO L87 Difference]: Start difference. First operand 184 states and 198 transitions. Second operand 3 states. [2018-11-10 01:56:57,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:56:57,578 INFO L93 Difference]: Finished difference Result 185 states and 198 transitions. [2018-11-10 01:56:57,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:56:57,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-11-10 01:56:57,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:56:57,580 INFO L225 Difference]: With dead ends: 185 [2018-11-10 01:56:57,580 INFO L226 Difference]: Without dead ends: 185 [2018-11-10 01:56:57,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:56:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-10 01:56:57,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2018-11-10 01:56:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-11-10 01:56:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 197 transitions. [2018-11-10 01:56:57,583 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 197 transitions. Word has length 35 [2018-11-10 01:56:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:56:57,583 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 197 transitions. [2018-11-10 01:56:57,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:56:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 197 transitions. [2018-11-10 01:56:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 01:56:57,584 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:56:57,584 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] [2018-11-10 01:56:57,584 INFO L424 AbstractCegarLoop]: === Iteration 27 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:56:57,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:56:57,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1079685094, now seen corresponding path program 1 times [2018-11-10 01:56:57,585 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:56:57,585 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 28 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 28 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:56:57,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:56:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:56:57,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:56:57,970 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 [2018-11-10 01:56:57,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:57,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:57,980 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:56:57,993 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:57,994 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:57,994 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 [2018-11-10 01:56:57,994 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,011 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 [2018-11-10 01:56:58,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-11-10 01:56:58,054 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 [2018-11-10 01:56:58,057 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 [2018-11-10 01:56:58,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,082 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 [2018-11-10 01:56:58,084 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 [2018-11-10 01:56:58,084 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,086 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,103 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:48 [2018-11-10 01:56:58,160 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 27 treesize of output 28 [2018-11-10 01:56:58,163 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 12 treesize of output 11 [2018-11-10 01:56:58,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,171 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,198 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 59 treesize of output 55 [2018-11-10 01:56:58,200 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 12 treesize of output 11 [2018-11-10 01:56:58,201 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,213 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,230 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:84, output treesize:46 [2018-11-10 01:56:58,251 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 [2018-11-10 01:56:58,253 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 [2018-11-10 01:56:58,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,255 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,269 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 34 treesize of output 26 [2018-11-10 01:56:58,271 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 26 treesize of output 15 [2018-11-10 01:56:58,271 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,277 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,287 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. [2018-11-10 01:56:58,287 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:28 [2018-11-10 01:56:58,349 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:58,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:58,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:56:58,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-11-10 01:56:58,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-10 01:56:58,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:56:58,391 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:43, output treesize:14 [2018-11-10 01:56:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:56:58,410 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:56:58,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:56:58,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 01:56:58,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 01:56:58,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 01:56:58,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:56:58,413 INFO L87 Difference]: Start difference. First operand 184 states and 197 transitions. Second operand 11 states. [2018-11-10 01:56:58,813 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-11-10 01:56:59,555 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2018-11-10 01:57:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:00,799 INFO L93 Difference]: Finished difference Result 289 states and 301 transitions. [2018-11-10 01:57:00,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 01:57:00,800 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2018-11-10 01:57:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:00,801 INFO L225 Difference]: With dead ends: 289 [2018-11-10 01:57:00,801 INFO L226 Difference]: Without dead ends: 289 [2018-11-10 01:57:00,801 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2018-11-10 01:57:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-11-10 01:57:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 178. [2018-11-10 01:57:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:57:00,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2018-11-10 01:57:00,805 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 35 [2018-11-10 01:57:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:00,805 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2018-11-10 01:57:00,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 01:57:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2018-11-10 01:57:00,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 01:57:00,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:00,806 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] [2018-11-10 01:57:00,806 INFO L424 AbstractCegarLoop]: === Iteration 28 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:00,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:00,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1073960288, now seen corresponding path program 1 times [2018-11-10 01:57:00,807 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:00,807 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 29 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 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:00,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:00,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:00,977 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 [2018-11-10 01:57:00,979 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 [2018-11-10 01:57:00,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:00,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:00,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:00,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:3 [2018-11-10 01:57:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:00,999 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:01,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:01,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:01,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:57:01,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:57:01,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:01,002 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 5 states. [2018-11-10 01:57:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:01,750 INFO L93 Difference]: Finished difference Result 203 states and 215 transitions. [2018-11-10 01:57:01,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:57:01,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-10 01:57:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:01,752 INFO L225 Difference]: With dead ends: 203 [2018-11-10 01:57:01,752 INFO L226 Difference]: Without dead ends: 203 [2018-11-10 01:57:01,752 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:57:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-10 01:57:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 177. [2018-11-10 01:57:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-10 01:57:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-11-10 01:57:01,755 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 35 [2018-11-10 01:57:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:01,755 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-11-10 01:57:01,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:57:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-11-10 01:57:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:57:01,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:01,756 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] [2018-11-10 01:57:01,756 INFO L424 AbstractCegarLoop]: === Iteration 29 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:01,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1200224959, now seen corresponding path program 1 times [2018-11-10 01:57:01,757 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:01,757 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 30 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 30 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:01,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:01,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:01,879 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 [2018-11-10 01:57:01,879 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:01,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:01,881 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:57:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:01,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:01,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:01,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:01,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:57:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:57:01,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:01,902 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 5 states. [2018-11-10 01:57:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:02,599 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-11-10 01:57:02,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:57:02,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-10 01:57:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:02,600 INFO L225 Difference]: With dead ends: 201 [2018-11-10 01:57:02,600 INFO L226 Difference]: Without dead ends: 201 [2018-11-10 01:57:02,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:57:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-11-10 01:57:02,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 179. [2018-11-10 01:57:02,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:57:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 190 transitions. [2018-11-10 01:57:02,603 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 190 transitions. Word has length 36 [2018-11-10 01:57:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:02,603 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 190 transitions. [2018-11-10 01:57:02,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:57:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2018-11-10 01:57:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 01:57:02,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:02,604 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] [2018-11-10 01:57:02,604 INFO L424 AbstractCegarLoop]: === Iteration 30 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:02,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1066969306, now seen corresponding path program 1 times [2018-11-10 01:57:02,605 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:02,605 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 31 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 31 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:02,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:02,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:02,902 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 [2018-11-10 01:57:02,903 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 [2018-11-10 01:57:02,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:02,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:02,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:02,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:7, output treesize:1 [2018-11-10 01:57:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:02,975 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:02,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:02,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:02,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:57:02,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:57:02,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:02,978 INFO L87 Difference]: Start difference. First operand 179 states and 190 transitions. Second operand 5 states. [2018-11-10 01:57:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:04,099 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2018-11-10 01:57:04,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:57:04,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-10 01:57:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:04,100 INFO L225 Difference]: With dead ends: 183 [2018-11-10 01:57:04,101 INFO L226 Difference]: Without dead ends: 183 [2018-11-10 01:57:04,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:57:04,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-10 01:57:04,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2018-11-10 01:57:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:57:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 189 transitions. [2018-11-10 01:57:04,103 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 189 transitions. Word has length 36 [2018-11-10 01:57:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:04,104 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 189 transitions. [2018-11-10 01:57:04,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:57:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 189 transitions. [2018-11-10 01:57:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 01:57:04,104 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:04,104 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:04,104 INFO L424 AbstractCegarLoop]: === Iteration 31 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:04,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1447731639, now seen corresponding path program 1 times [2018-11-10 01:57:04,105 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:04,105 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 32 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 32 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:04,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:04,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:04,236 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 [2018-11-10 01:57:04,236 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:04,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:04,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:57:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:04,274 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:04,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:04,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:04,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:57:04,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:57:04,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:04,277 INFO L87 Difference]: Start difference. First operand 178 states and 189 transitions. Second operand 5 states. [2018-11-10 01:57:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:05,042 INFO L93 Difference]: Finished difference Result 221 states and 233 transitions. [2018-11-10 01:57:05,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:57:05,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-11-10 01:57:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:05,044 INFO L225 Difference]: With dead ends: 221 [2018-11-10 01:57:05,044 INFO L226 Difference]: Without dead ends: 221 [2018-11-10 01:57:05,044 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:57:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-10 01:57:05,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 179. [2018-11-10 01:57:05,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-10 01:57:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 188 transitions. [2018-11-10 01:57:05,048 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 188 transitions. Word has length 37 [2018-11-10 01:57:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:05,048 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 188 transitions. [2018-11-10 01:57:05,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:57:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 188 transitions. [2018-11-10 01:57:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 01:57:05,049 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:05,049 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:05,049 INFO L424 AbstractCegarLoop]: === Iteration 32 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:05,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:05,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1804706840, now seen corresponding path program 1 times [2018-11-10 01:57:05,050 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:05,050 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 33 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 33 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:05,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:05,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:05,372 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 [2018-11-10 01:57:05,374 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 [2018-11-10 01:57:05,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:05,375 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:05,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:05,377 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:3 [2018-11-10 01:57:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:05,462 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:05,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:05,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:57:05,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:57:05,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:57:05,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:57:05,465 INFO L87 Difference]: Start difference. First operand 179 states and 188 transitions. Second operand 7 states. [2018-11-10 01:57:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:06,314 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2018-11-10 01:57:06,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:57:06,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2018-11-10 01:57:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:06,316 INFO L225 Difference]: With dead ends: 197 [2018-11-10 01:57:06,316 INFO L226 Difference]: Without dead ends: 197 [2018-11-10 01:57:06,317 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-11-10 01:57:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-11-10 01:57:06,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 178. [2018-11-10 01:57:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 01:57:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 187 transitions. [2018-11-10 01:57:06,320 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 187 transitions. Word has length 37 [2018-11-10 01:57:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:06,320 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 187 transitions. [2018-11-10 01:57:06,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:57:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 187 transitions. [2018-11-10 01:57:06,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 01:57:06,320 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:06,320 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:06,320 INFO L424 AbstractCegarLoop]: === Iteration 33 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:06,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:06,321 INFO L82 PathProgramCache]: Analyzing trace with hash 843517930, now seen corresponding path program 1 times [2018-11-10 01:57:06,321 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:06,325 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 34 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 34 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:06,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:06,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:06,567 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 [2018-11-10 01:57:06,569 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 [2018-11-10 01:57:06,569 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,573 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,576 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 [2018-11-10 01:57:06,578 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 [2018-11-10 01:57:06,578 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,579 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,580 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:15, output treesize:1 [2018-11-10 01:57:06,583 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 [2018-11-10 01:57:06,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-10 01:57:06,614 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 [2018-11-10 01:57:06,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 01:57:06,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,619 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,630 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 [2018-11-10 01:57:06,633 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 [2018-11-10 01:57:06,633 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,636 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,643 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:30, output treesize:17 [2018-11-10 01:57:06,657 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 [2018-11-10 01:57:06,660 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 [2018-11-10 01:57:06,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,674 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 [2018-11-10 01:57:06,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-10 01:57:06,676 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,678 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:06,684 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:36, output treesize:14 [2018-11-10 01:57:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:06,697 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:06,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:06,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:06,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:57:06,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:57:06,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:06,699 INFO L87 Difference]: Start difference. First operand 178 states and 187 transitions. Second operand 5 states. [2018-11-10 01:57:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:07,388 INFO L93 Difference]: Finished difference Result 176 states and 185 transitions. [2018-11-10 01:57:07,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 01:57:07,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-10 01:57:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:07,389 INFO L225 Difference]: With dead ends: 176 [2018-11-10 01:57:07,389 INFO L226 Difference]: Without dead ends: 176 [2018-11-10 01:57:07,389 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:57:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-10 01:57:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-11-10 01:57:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:57:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 185 transitions. [2018-11-10 01:57:07,392 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 185 transitions. Word has length 39 [2018-11-10 01:57:07,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:07,393 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 185 transitions. [2018-11-10 01:57:07,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:57:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 185 transitions. [2018-11-10 01:57:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 01:57:07,393 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:07,393 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] [2018-11-10 01:57:07,394 INFO L424 AbstractCegarLoop]: === Iteration 34 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:07,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:07,394 INFO L82 PathProgramCache]: Analyzing trace with hash 688559553, now seen corresponding path program 1 times [2018-11-10 01:57:07,394 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:07,395 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 35 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 35 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:07,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:07,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:07,623 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 [2018-11-10 01:57:07,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,627 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 01:57:07,641 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 [2018-11-10 01:57:07,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,651 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2018-11-10 01:57:07,675 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 [2018-11-10 01:57:07,679 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 [2018-11-10 01:57:07,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,698 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:28 [2018-11-10 01:57:07,723 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 25 treesize of output 20 [2018-11-10 01:57:07,726 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:07,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-10 01:57:07,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,739 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:22 [2018-11-10 01:57:07,815 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 [2018-11-10 01:57:07,816 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 [2018-11-10 01:57:07,817 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:07,825 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. [2018-11-10 01:57:07,825 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2018-11-10 01:57:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:07,879 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:57:08,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-11-10 01:57:08,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 01:57:08,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2018-11-10 01:57:08,053 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 17 treesize of output 11 [2018-11-10 01:57:08,053 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2018-11-10 01:57:08,079 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 01:57:08,097 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-11-10 01:57:08,098 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 01:57:08,115 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 01:57:08,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 01:57:08,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 01:57:08,148 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:22, output treesize:26 [2018-11-10 01:57:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:08,241 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:57:08,241 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:57:08,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:08,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:08,350 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 [2018-11-10 01:57:08,353 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 [2018-11-10 01:57:08,353 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,376 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 [2018-11-10 01:57:08,379 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 [2018-11-10 01:57:08,380 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,383 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,397 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:31, output treesize:23 [2018-11-10 01:57:08,465 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 [2018-11-10 01:57:08,470 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:08,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-11-10 01:57:08,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,487 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-11-10 01:57:08,516 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:08,520 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 [2018-11-10 01:57:08,520 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,532 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,549 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2018-11-10 01:57:08,694 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 [2018-11-10 01:57:08,697 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 [2018-11-10 01:57:08,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,715 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 [2018-11-10 01:57:08,717 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 [2018-11-10 01:57:08,717 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,720 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,726 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-10 01:57:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:08,781 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:57:08,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-10 01:57:08,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 01:57:08,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:08,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 01:57:08,980 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 9 [2018-11-10 01:57:08,981 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:09,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2018-11-10 01:57:09,000 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:09,022 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 12 [2018-11-10 01:57:09,023 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-10 01:57:09,031 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 01:57:09,038 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 01:57:09,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-10 01:57:09,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 01:57:09,060 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:09,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 01:57:09,107 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 9 [2018-11-10 01:57:09,107 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:09,134 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 12 [2018-11-10 01:57:09,135 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-10 01:57:09,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2018-11-10 01:57:09,149 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:09,157 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 01:57:09,165 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 01:57:09,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-10 01:57:09,176 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:41, output treesize:13 [2018-11-10 01:57:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:09,202 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 01:57:09,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 8, 8] total 24 [2018-11-10 01:57:09,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-10 01:57:09,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-10 01:57:09,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2018-11-10 01:57:09,203 INFO L87 Difference]: Start difference. First operand 176 states and 185 transitions. Second operand 24 states. [2018-11-10 01:57:10,215 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2018-11-10 01:57:10,759 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-11-10 01:57:11,770 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2018-11-10 01:57:12,168 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-11-10 01:57:12,598 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2018-11-10 01:57:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:16,592 INFO L93 Difference]: Finished difference Result 282 states and 293 transitions. [2018-11-10 01:57:16,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-10 01:57:16,593 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 40 [2018-11-10 01:57:16,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:16,594 INFO L225 Difference]: With dead ends: 282 [2018-11-10 01:57:16,594 INFO L226 Difference]: Without dead ends: 282 [2018-11-10 01:57:16,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=296, Invalid=1510, Unknown=0, NotChecked=0, Total=1806 [2018-11-10 01:57:16,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2018-11-10 01:57:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 195. [2018-11-10 01:57:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-11-10 01:57:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 204 transitions. [2018-11-10 01:57:16,597 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 204 transitions. Word has length 40 [2018-11-10 01:57:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:16,597 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 204 transitions. [2018-11-10 01:57:16,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-10 01:57:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 204 transitions. [2018-11-10 01:57:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 01:57:16,597 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:16,598 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:16,598 INFO L424 AbstractCegarLoop]: === Iteration 35 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:16,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1128084500, now seen corresponding path program 1 times [2018-11-10 01:57:16,598 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:16,598 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 37 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 37 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:16,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:16,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:16,962 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 [2018-11-10 01:57:16,965 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 [2018-11-10 01:57:16,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:16,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:16,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:16,969 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:3 [2018-11-10 01:57:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:17,102 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:17,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:17,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 01:57:17,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 01:57:17,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 01:57:17,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:57:17,104 INFO L87 Difference]: Start difference. First operand 195 states and 204 transitions. Second operand 9 states. [2018-11-10 01:57:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:18,784 INFO L93 Difference]: Finished difference Result 217 states and 227 transitions. [2018-11-10 01:57:18,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-10 01:57:18,786 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-11-10 01:57:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:18,786 INFO L225 Difference]: With dead ends: 217 [2018-11-10 01:57:18,786 INFO L226 Difference]: Without dead ends: 217 [2018-11-10 01:57:18,787 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2018-11-10 01:57:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-11-10 01:57:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 193. [2018-11-10 01:57:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-11-10 01:57:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 202 transitions. [2018-11-10 01:57:18,789 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 202 transitions. Word has length 41 [2018-11-10 01:57:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:18,789 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 202 transitions. [2018-11-10 01:57:18,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 01:57:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 202 transitions. [2018-11-10 01:57:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 01:57:18,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:18,789 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:18,790 INFO L424 AbstractCegarLoop]: === Iteration 36 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:18,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash 643382959, now seen corresponding path program 1 times [2018-11-10 01:57:18,790 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:18,790 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 38 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 38 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:18,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:19,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:19,097 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 [2018-11-10 01:57:19,100 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 [2018-11-10 01:57:19,100 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:19,101 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:19,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:19,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:10 [2018-11-10 01:57:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:19,282 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:19,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:19,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:57:19,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:57:19,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:57:19,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:57:19,284 INFO L87 Difference]: Start difference. First operand 193 states and 202 transitions. Second operand 7 states. [2018-11-10 01:57:20,138 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2018-11-10 01:57:20,421 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2018-11-10 01:57:20,681 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2018-11-10 01:57:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:21,569 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2018-11-10 01:57:21,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 01:57:21,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-10 01:57:21,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:21,571 INFO L225 Difference]: With dead ends: 198 [2018-11-10 01:57:21,571 INFO L226 Difference]: Without dead ends: 198 [2018-11-10 01:57:21,571 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:57:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-11-10 01:57:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 192. [2018-11-10 01:57:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-11-10 01:57:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 201 transitions. [2018-11-10 01:57:21,573 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 201 transitions. Word has length 41 [2018-11-10 01:57:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:21,574 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 201 transitions. [2018-11-10 01:57:21,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:57:21,574 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 201 transitions. [2018-11-10 01:57:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 01:57:21,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:21,574 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:21,574 INFO L424 AbstractCegarLoop]: === Iteration 37 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:21,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash -610881012, now seen corresponding path program 1 times [2018-11-10 01:57:21,575 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:21,575 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 39 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 39 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:21,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:22,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:22,072 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 [2018-11-10 01:57:22,075 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 [2018-11-10 01:57:22,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,114 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 [2018-11-10 01:57:22,116 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 [2018-11-10 01:57:22,116 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,117 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,119 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:18, output treesize:3 [2018-11-10 01:57:22,139 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:22,140 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:22,141 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 [2018-11-10 01:57:22,141 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,158 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-10 01:57:22,187 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 [2018-11-10 01:57:22,190 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 [2018-11-10 01:57:22,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:29 [2018-11-10 01:57:22,288 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 39 treesize of output 35 [2018-11-10 01:57:22,291 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 12 treesize of output 11 [2018-11-10 01:57:22,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:27 [2018-11-10 01:57:22,340 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 25 treesize of output 19 [2018-11-10 01:57:22,343 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 [2018-11-10 01:57:22,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:22,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 01:57:22,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:17 [2018-11-10 01:57:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:22,379 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:22,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:22,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 01:57:22,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 01:57:22,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 01:57:22,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:57:22,383 INFO L87 Difference]: Start difference. First operand 192 states and 201 transitions. Second operand 9 states. [2018-11-10 01:57:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:23,661 INFO L93 Difference]: Finished difference Result 264 states and 277 transitions. [2018-11-10 01:57:23,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 01:57:23,662 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-11-10 01:57:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:23,663 INFO L225 Difference]: With dead ends: 264 [2018-11-10 01:57:23,663 INFO L226 Difference]: Without dead ends: 264 [2018-11-10 01:57:23,664 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:57:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-11-10 01:57:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 190. [2018-11-10 01:57:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-10 01:57:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2018-11-10 01:57:23,667 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 42 [2018-11-10 01:57:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:23,667 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2018-11-10 01:57:23,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 01:57:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2018-11-10 01:57:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 01:57:23,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:23,668 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, 1] [2018-11-10 01:57:23,668 INFO L424 AbstractCegarLoop]: === Iteration 38 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:23,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash 114142868, now seen corresponding path program 1 times [2018-11-10 01:57:23,669 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:23,669 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 40 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 40 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:23,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:23,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:23,803 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 [2018-11-10 01:57:23,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:23,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:23,810 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 01:57:23,822 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:23,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:23,823 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 [2018-11-10 01:57:23,823 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:23,825 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:23,825 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-11-10 01:57:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:57:23,831 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:23,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:23,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 01:57:23,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:57:23,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:57:23,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:57:23,833 INFO L87 Difference]: Start difference. First operand 190 states and 199 transitions. Second operand 4 states. [2018-11-10 01:57:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:24,214 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2018-11-10 01:57:24,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 01:57:24,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-10 01:57:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:24,216 INFO L225 Difference]: With dead ends: 224 [2018-11-10 01:57:24,216 INFO L226 Difference]: Without dead ends: 224 [2018-11-10 01:57:24,216 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:57:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-11-10 01:57:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 190. [2018-11-10 01:57:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-10 01:57:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 198 transitions. [2018-11-10 01:57:24,220 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 198 transitions. Word has length 43 [2018-11-10 01:57:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:24,220 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 198 transitions. [2018-11-10 01:57:24,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:57:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 198 transitions. [2018-11-10 01:57:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 01:57:24,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:24,221 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:24,221 INFO L424 AbstractCegarLoop]: === Iteration 39 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:24,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:24,221 INFO L82 PathProgramCache]: Analyzing trace with hash -979674128, now seen corresponding path program 1 times [2018-11-10 01:57:24,222 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:24,222 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 41 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 41 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:24,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:24,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:24,795 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 [2018-11-10 01:57:24,797 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 [2018-11-10 01:57:24,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,799 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,809 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 [2018-11-10 01:57:24,811 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 [2018-11-10 01:57:24,811 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,811 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,813 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,813 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:18, output treesize:3 [2018-11-10 01:57:24,825 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:24,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 01:57:24,828 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 [2018-11-10 01:57:24,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,844 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 [2018-11-10 01:57:24,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,866 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,866 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-11-10 01:57:24,906 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 [2018-11-10 01:57:24,911 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 [2018-11-10 01:57:24,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,948 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 [2018-11-10 01:57:24,952 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 [2018-11-10 01:57:24,952 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,959 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:24,979 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:31 [2018-11-10 01:57:25,053 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 27 treesize of output 28 [2018-11-10 01:57:25,057 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 12 treesize of output 11 [2018-11-10 01:57:25,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,069 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,098 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 48 treesize of output 44 [2018-11-10 01:57:25,103 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 12 treesize of output 11 [2018-11-10 01:57:25,103 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,116 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,133 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:63, output treesize:25 [2018-11-10 01:57:25,156 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 [2018-11-10 01:57:25,159 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 11 treesize of output 3 [2018-11-10 01:57:25,159 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,179 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 25 treesize of output 19 [2018-11-10 01:57:25,182 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 [2018-11-10 01:57:25,182 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,188 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:25,199 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:15 [2018-11-10 01:57:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:25,254 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:25,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:25,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 01:57:25,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 01:57:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 01:57:25,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:57:25,257 INFO L87 Difference]: Start difference. First operand 190 states and 198 transitions. Second operand 10 states. [2018-11-10 01:57:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:27,627 INFO L93 Difference]: Finished difference Result 314 states and 328 transitions. [2018-11-10 01:57:27,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 01:57:27,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2018-11-10 01:57:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:27,628 INFO L225 Difference]: With dead ends: 314 [2018-11-10 01:57:27,628 INFO L226 Difference]: Without dead ends: 314 [2018-11-10 01:57:27,628 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2018-11-10 01:57:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-11-10 01:57:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 176. [2018-11-10 01:57:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-10 01:57:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 183 transitions. [2018-11-10 01:57:27,631 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 183 transitions. Word has length 45 [2018-11-10 01:57:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:27,631 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 183 transitions. [2018-11-10 01:57:27,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 01:57:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 183 transitions. [2018-11-10 01:57:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-10 01:57:27,631 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:27,631 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:27,632 INFO L424 AbstractCegarLoop]: === Iteration 40 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:27,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:27,632 INFO L82 PathProgramCache]: Analyzing trace with hash 496301051, now seen corresponding path program 1 times [2018-11-10 01:57:27,632 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:27,632 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 42 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 42 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:27,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:27,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:27,827 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 [2018-11-10 01:57:27,829 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 [2018-11-10 01:57:27,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,834 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,838 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-10 01:57:27,878 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 [2018-11-10 01:57:27,880 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 [2018-11-10 01:57:27,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:27,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-10 01:57:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:57:27,898 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 01:57:27,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:57:27,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 01:57:27,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 01:57:27,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 01:57:27,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:57:27,901 INFO L87 Difference]: Start difference. First operand 176 states and 183 transitions. Second operand 6 states. [2018-11-10 01:57:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:28,627 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-11-10 01:57:28,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:57:28,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-11-10 01:57:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:28,629 INFO L225 Difference]: With dead ends: 201 [2018-11-10 01:57:28,629 INFO L226 Difference]: Without dead ends: 201 [2018-11-10 01:57:28,629 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:57:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-11-10 01:57:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2018-11-10 01:57:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-10 01:57:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2018-11-10 01:57:28,632 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 49 [2018-11-10 01:57:28,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:28,632 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 188 transitions. [2018-11-10 01:57:28,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 01:57:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 188 transitions. [2018-11-10 01:57:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 01:57:28,633 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:28,633 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:28,633 INFO L424 AbstractCegarLoop]: === Iteration 41 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:28,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:28,633 INFO L82 PathProgramCache]: Analyzing trace with hash 837424276, now seen corresponding path program 1 times [2018-11-10 01:57:28,634 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:28,634 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 43 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 43 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:28,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:28,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:28,837 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 [2018-11-10 01:57:28,839 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 [2018-11-10 01:57:28,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,843 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,858 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 [2018-11-10 01:57:28,861 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 [2018-11-10 01:57:28,861 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,865 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,876 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:29, output treesize:7 [2018-11-10 01:57:28,972 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 [2018-11-10 01:57:28,974 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 [2018-11-10 01:57:28,974 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,987 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 [2018-11-10 01:57:28,989 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 [2018-11-10 01:57:28,989 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,992 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:28,997 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:32, output treesize:10 [2018-11-10 01:57:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:29,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:57:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:29,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:57:29,243 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 01:57:29,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:57:29,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:57:29,315 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 [2018-11-10 01:57:29,317 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 [2018-11-10 01:57:29,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,331 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 [2018-11-10 01:57:29,333 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 [2018-11-10 01:57:29,334 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,337 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,344 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:23, output treesize:1 [2018-11-10 01:57:29,426 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 [2018-11-10 01:57:29,430 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 [2018-11-10 01:57:29,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,449 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 [2018-11-10 01:57:29,452 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 [2018-11-10 01:57:29,453 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,456 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 01:57:29,462 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-10 01:57:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:29,466 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 01:57:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:57:29,591 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 01:57:29,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 10, 9] total 25 [2018-11-10 01:57:29,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 01:57:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 01:57:29,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2018-11-10 01:57:29,592 INFO L87 Difference]: Start difference. First operand 181 states and 188 transitions. Second operand 25 states. [2018-11-10 01:57:32,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:57:32,732 INFO L93 Difference]: Finished difference Result 278 states and 291 transitions. [2018-11-10 01:57:32,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-10 01:57:32,733 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 51 [2018-11-10 01:57:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:57:32,734 INFO L225 Difference]: With dead ends: 278 [2018-11-10 01:57:32,734 INFO L226 Difference]: Without dead ends: 278 [2018-11-10 01:57:32,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=436, Invalid=1916, Unknown=0, NotChecked=0, Total=2352 [2018-11-10 01:57:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-11-10 01:57:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 201. [2018-11-10 01:57:32,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-10 01:57:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2018-11-10 01:57:32,736 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 51 [2018-11-10 01:57:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:57:32,736 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2018-11-10 01:57:32,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 01:57:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2018-11-10 01:57:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 01:57:32,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:57:32,737 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:57:32,737 INFO L424 AbstractCegarLoop]: === Iteration 42 === [mainErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr47ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr59ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr58ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr38ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr39ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 01:57:32,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:57:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 190348323, now seen corresponding path program 1 times [2018-11-10 01:57:32,738 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 01:57:32,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_442d8da0-2e54-4649-9752-25c5956b8771/bin-2019/utaipan/cvc4nyu Starting monitored process 45 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 45 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 01:57:32,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:57:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:57:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:57:33,330 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 01:57:33,346 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,350 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,356 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,356 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,356 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,357 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,357 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,357 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,358 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,358 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,358 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,365 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,366 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,366 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,366 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,367 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,367 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,367 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,368 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,368 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,368 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,369 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,369 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,369 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,370 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,370 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,370 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,372 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,372 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,373 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,373 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,373 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,374 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,374 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,374 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,375 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,375 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,375 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,377 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,377 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,377 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,378 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,378 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,378 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,379 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,379 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,379 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,383 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,383 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,383 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,383 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,384 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,385 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,386 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,386 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,386 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,386 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,390 WARN L387 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-10 01:57:33,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:57:33,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 01:57:33,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:57:33 BoogieIcfgContainer [2018-11-10 01:57:33,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 01:57:33,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:57:33,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:57:33,414 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:57:33,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:56:29" (3/4) ... [2018-11-10 01:57:33,418 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 01:57:33,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:57:33,419 INFO L168 Benchmark]: Toolchain (without parser) took 65126.84 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 350.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -202.5 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:57:33,420 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-10 01:57:33,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 922.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 01:57:33,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -222.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-11-10 01:57:33,420 INFO L168 Benchmark]: Boogie Preprocessor took 42.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:57:33,421 INFO L168 Benchmark]: RCFGBuilder took 906.10 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2018-11-10 01:57:33,421 INFO L168 Benchmark]: TraceAbstraction took 63701.46 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.6 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. [2018-11-10 01:57:33,421 INFO L168 Benchmark]: Witness Printer took 4.85 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. [2018-11-10 01:57:33,422 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 373.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 922.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -222.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 906.10 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 63701.46 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.6 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.85 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 Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * 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)); [L988] CALL null->next = ((void*)0) [L988] RET null->next = ((void*)0) [L989] CALL null->prev = ((void*)0) [L989] RET null->prev = ((void*)0) [L990] CALL null->colour = BLACK [L990] RET null->colour = BLACK [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); [L993] CALL list->next = null [L993] RET list->next = null [L994] CALL list->prev = null [L994] RET list->prev = null [L995] CALL list->colour = BLACK [L995] RET list->colour = BLACK [L997] struct TSLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list [L1030] COND FALSE !(!(null != end)) [L1030] COND FALSE !(0) [L1031] CALL, EXPR end->colour [L1031] RET, EXPR end->colour [L1031] COND FALSE !(!(BLACK == end->colour)) [L1031] COND FALSE !(0) [L1032] COND TRUE null != end [L1034] CALL, EXPR end->colour [L1034] RET, EXPR end->colour [L1034] COND FALSE !(RED == end->colour) [L1041] CALL, EXPR end->next [L1041] RET, EXPR end->next [L1041] end = end->next [L1032] COND FALSE !(null != end) [L1045] COND TRUE null != list [L1047] CALL, EXPR list->colour [L1047] RET, EXPR list->colour [L1047] COND FALSE !(RED == list->colour) [L1056] CALL, EXPR list->next [L1056] RET, EXPR list->next [L1056] end = list->next [L1057] free(list) [L1057] free(list) [L1057] FCALL free(list) [L1058] list = end [L1045] COND FALSE !(null != list) [L1062] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 176 locations, 67 error locations. UNSAFE Result, 63.6s OverallTime, 42 OverallIterations, 2 TraceHistogramMax, 48.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4230 SDtfs, 10899 SDslu, 9425 SDs, 0 SdLazy, 16318 SolverSat, 1270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1629 GetRequests, 1236 SyntacticMatches, 4 SemanticMatches, 389 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=41, 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: 0.1s AutomataMinimizationTime, 41 MinimizatonAttempts, 2304 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 1316 NumberOfCodeBlocks, 1316 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1399 ConstructedInterpolants, 13 QuantifiedInterpolants, 362324 SizeOfPredicates, 730 NumberOfNonLiveVariables, 8159 ConjunctsInSsa, 749 ConjunctsInUnsatCore, 47 InterpolantComputations, 39 PerfectInterpolantSequences, 10/36 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...