./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7fc5757f33cca8abec0d298407c4598828d90b8e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7fc5757f33cca8abec0d298407c4598828d90b8e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:32:37,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:32:37,089 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:32:37,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:32:37,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:32:37,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:32:37,098 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:32:37,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:32:37,100 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:32:37,101 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:32:37,102 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:32:37,102 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:32:37,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:32:37,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:32:37,104 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:32:37,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:32:37,105 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:32:37,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:32:37,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:32:37,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:32:37,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:32:37,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:32:37,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:32:37,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:32:37,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:32:37,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:32:37,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:32:37,115 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:32:37,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:32:37,117 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:32:37,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:32:37,117 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:32:37,117 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:32:37,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:32:37,118 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:32:37,119 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:32:37,119 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-23 08:32:37,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:32:37,127 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:32:37,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:32:37,128 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:32:37,128 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:32:37,128 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:32:37,128 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:32:37,129 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:32:37,129 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:32:37,130 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:32:37,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:32:37,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:32:37,131 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:32:37,132 INFO L133 SettingsManager]: * To the following directory=dump/ 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_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fc5757f33cca8abec0d298407c4598828d90b8e [2018-11-23 08:32:37,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:32:37,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:32:37,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:32:37,173 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:32:37,173 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:32:37,174 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:32:37,221 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e805d3a32/2b4052d9364747b1b07656f2ee7f92ce/FLAGf23eb2835 [2018-11-23 08:32:37,707 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:32:37,708 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:32:37,729 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e805d3a32/2b4052d9364747b1b07656f2ee7f92ce/FLAGf23eb2835 [2018-11-23 08:32:37,979 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e805d3a32/2b4052d9364747b1b07656f2ee7f92ce [2018-11-23 08:32:37,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:32:37,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:32:37,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:32:37,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:32:37,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:32:37,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:37" (1/1) ... [2018-11-23 08:32:37,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f57e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:37, skipping insertion in model container [2018-11-23 08:32:37,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:37" (1/1) ... [2018-11-23 08:32:37,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:32:38,058 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:32:38,656 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:32:38,674 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:32:38,803 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:32:38,833 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:32:38,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38 WrapperNode [2018-11-23 08:32:38,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:32:38,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:32:38,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:32:38,835 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:32:38,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:32:38,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:32:38,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:32:38,866 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:32:38,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2018-11-23 08:32:38,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:32:38,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:32:38,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:32:38,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:32:38,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:32:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2018-11-23 08:32:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2018-11-23 08:32:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:32:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:32:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-23 08:32:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-23 08:32:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-23 08:32:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-23 08:32:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 08:32:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2018-11-23 08:32:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-23 08:32:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-23 08:32:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2018-11-23 08:32:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 08:32:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-23 08:32:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-23 08:32:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-23 08:32:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-23 08:32:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-23 08:32:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-23 08:32:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-23 08:32:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-23 08:32:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-23 08:32:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-23 08:32:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-23 08:32:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 08:32:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:32:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:32:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2018-11-23 08:32:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2018-11-23 08:32:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 08:32:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-23 08:32:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-23 08:32:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:32:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:32:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2018-11-23 08:32:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2018-11-23 08:32:39,500 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:32:39,500 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 08:32:39,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:39 BoogieIcfgContainer [2018-11-23 08:32:39,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:32:39,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:32:39,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:32:39,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:32:39,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:37" (1/3) ... [2018-11-23 08:32:39,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575e0a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:39, skipping insertion in model container [2018-11-23 08:32:39,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (2/3) ... [2018-11-23 08:32:39,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575e0a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:39, skipping insertion in model container [2018-11-23 08:32:39,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:39" (3/3) ... [2018-11-23 08:32:39,506 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:32:39,513 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:32:39,518 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:32:39,528 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:32:39,549 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:32:39,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:32:39,550 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:32:39,550 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:32:39,550 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:32:39,550 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:32:39,550 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:32:39,550 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:32:39,550 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:32:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-11-23 08:32:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-23 08:32:39,572 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:39,573 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:39,574 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:39,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:39,578 INFO L82 PathProgramCache]: Analyzing trace with hash -386013534, now seen corresponding path program 1 times [2018-11-23 08:32:39,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:39,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:39,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:39,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:39,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:32:39,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:39,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:39,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:39,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:39,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:39,872 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-11-23 08:32:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:39,952 INFO L93 Difference]: Finished difference Result 288 states and 373 transitions. [2018-11-23 08:32:39,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:39,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-11-23 08:32:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:39,967 INFO L225 Difference]: With dead ends: 288 [2018-11-23 08:32:39,968 INFO L226 Difference]: Without dead ends: 179 [2018-11-23 08:32:39,972 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-11-23 08:32:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 176. [2018-11-23 08:32:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-23 08:32:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 216 transitions. [2018-11-23 08:32:40,032 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 216 transitions. Word has length 63 [2018-11-23 08:32:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,034 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 216 transitions. [2018-11-23 08:32:40,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 216 transitions. [2018-11-23 08:32:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-23 08:32:40,038 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,038 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,038 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1441540741, now seen corresponding path program 1 times [2018-11-23 08:32:40,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:32:40,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:40,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:40,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:40,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:40,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,161 INFO L87 Difference]: Start difference. First operand 176 states and 216 transitions. Second operand 3 states. [2018-11-23 08:32:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:40,196 INFO L93 Difference]: Finished difference Result 186 states and 224 transitions. [2018-11-23 08:32:40,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:40,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-11-23 08:32:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:40,199 INFO L225 Difference]: With dead ends: 186 [2018-11-23 08:32:40,199 INFO L226 Difference]: Without dead ends: 181 [2018-11-23 08:32:40,200 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-23 08:32:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 176. [2018-11-23 08:32:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-23 08:32:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 215 transitions. [2018-11-23 08:32:40,219 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 215 transitions. Word has length 66 [2018-11-23 08:32:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,220 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 215 transitions. [2018-11-23 08:32:40,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 215 transitions. [2018-11-23 08:32:40,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-23 08:32:40,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,222 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,223 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1498799043, now seen corresponding path program 1 times [2018-11-23 08:32:40,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:32:40,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:40,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:40,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:40,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:40,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,332 INFO L87 Difference]: Start difference. First operand 176 states and 215 transitions. Second operand 3 states. [2018-11-23 08:32:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:40,365 INFO L93 Difference]: Finished difference Result 463 states and 586 transitions. [2018-11-23 08:32:40,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:40,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-11-23 08:32:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:40,370 INFO L225 Difference]: With dead ends: 463 [2018-11-23 08:32:40,370 INFO L226 Difference]: Without dead ends: 311 [2018-11-23 08:32:40,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-11-23 08:32:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2018-11-23 08:32:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-11-23 08:32:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 385 transitions. [2018-11-23 08:32:40,398 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 385 transitions. Word has length 66 [2018-11-23 08:32:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,398 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 385 transitions. [2018-11-23 08:32:40,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 385 transitions. [2018-11-23 08:32:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-23 08:32:40,400 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,401 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,401 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1434439787, now seen corresponding path program 1 times [2018-11-23 08:32:40,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:32:40,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:40,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:40,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:40,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:40,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,489 INFO L87 Difference]: Start difference. First operand 307 states and 385 transitions. Second operand 3 states. [2018-11-23 08:32:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:40,525 INFO L93 Difference]: Finished difference Result 659 states and 839 transitions. [2018-11-23 08:32:40,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:40,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2018-11-23 08:32:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:40,528 INFO L225 Difference]: With dead ends: 659 [2018-11-23 08:32:40,528 INFO L226 Difference]: Without dead ends: 383 [2018-11-23 08:32:40,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-11-23 08:32:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 373. [2018-11-23 08:32:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-11-23 08:32:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 475 transitions. [2018-11-23 08:32:40,550 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 475 transitions. Word has length 85 [2018-11-23 08:32:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,550 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 475 transitions. [2018-11-23 08:32:40,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 475 transitions. [2018-11-23 08:32:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 08:32:40,552 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,552 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,552 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1009601124, now seen corresponding path program 1 times [2018-11-23 08:32:40,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:40,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:40,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:32:40,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:32:40,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:32:40,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:32:40,722 INFO L87 Difference]: Start difference. First operand 373 states and 475 transitions. Second operand 7 states. [2018-11-23 08:32:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:40,784 INFO L93 Difference]: Finished difference Result 751 states and 964 transitions. [2018-11-23 08:32:40,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:32:40,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2018-11-23 08:32:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:40,787 INFO L225 Difference]: With dead ends: 751 [2018-11-23 08:32:40,787 INFO L226 Difference]: Without dead ends: 409 [2018-11-23 08:32:40,788 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:32:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-11-23 08:32:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 403. [2018-11-23 08:32:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-11-23 08:32:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 509 transitions. [2018-11-23 08:32:40,809 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 509 transitions. Word has length 99 [2018-11-23 08:32:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,810 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 509 transitions. [2018-11-23 08:32:40,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:32:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 509 transitions. [2018-11-23 08:32:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 08:32:40,811 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,812 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,812 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,812 INFO L82 PathProgramCache]: Analyzing trace with hash -270262554, now seen corresponding path program 1 times [2018-11-23 08:32:40,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:40,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:40,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:40,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:40,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:40,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,928 INFO L87 Difference]: Start difference. First operand 403 states and 509 transitions. Second operand 3 states. [2018-11-23 08:32:40,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:40,960 INFO L93 Difference]: Finished difference Result 750 states and 965 transitions. [2018-11-23 08:32:40,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:40,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2018-11-23 08:32:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:40,963 INFO L225 Difference]: With dead ends: 750 [2018-11-23 08:32:40,963 INFO L226 Difference]: Without dead ends: 378 [2018-11-23 08:32:40,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-11-23 08:32:40,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 366. [2018-11-23 08:32:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-11-23 08:32:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 462 transitions. [2018-11-23 08:32:40,981 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 462 transitions. Word has length 99 [2018-11-23 08:32:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:40,981 INFO L480 AbstractCegarLoop]: Abstraction has 366 states and 462 transitions. [2018-11-23 08:32:40,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 462 transitions. [2018-11-23 08:32:40,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-23 08:32:40,983 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:40,983 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:40,984 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:40,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:40,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1457966568, now seen corresponding path program 1 times [2018-11-23 08:32:40,984 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:40,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:40,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:40,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:40,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:41,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:41,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:32:41,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:32:41,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:32:41,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:32:41,159 INFO L87 Difference]: Start difference. First operand 366 states and 462 transitions. Second operand 7 states. [2018-11-23 08:32:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:41,600 INFO L93 Difference]: Finished difference Result 598 states and 749 transitions. [2018-11-23 08:32:41,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 08:32:41,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2018-11-23 08:32:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:41,604 INFO L225 Difference]: With dead ends: 598 [2018-11-23 08:32:41,604 INFO L226 Difference]: Without dead ends: 595 [2018-11-23 08:32:41,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-23 08:32:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2018-11-23 08:32:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 563. [2018-11-23 08:32:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2018-11-23 08:32:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 715 transitions. [2018-11-23 08:32:41,631 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 715 transitions. Word has length 105 [2018-11-23 08:32:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:41,631 INFO L480 AbstractCegarLoop]: Abstraction has 563 states and 715 transitions. [2018-11-23 08:32:41,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:32:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 715 transitions. [2018-11-23 08:32:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-23 08:32:41,632 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:41,633 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:41,633 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:41,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:41,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1545557474, now seen corresponding path program 1 times [2018-11-23 08:32:41,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:41,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:41,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:41,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:41,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:41,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:32:41,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:32:41,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:32:41,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:41,700 INFO L87 Difference]: Start difference. First operand 563 states and 715 transitions. Second operand 3 states. [2018-11-23 08:32:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:41,724 INFO L93 Difference]: Finished difference Result 974 states and 1237 transitions. [2018-11-23 08:32:41,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:32:41,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2018-11-23 08:32:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:41,728 INFO L225 Difference]: With dead ends: 974 [2018-11-23 08:32:41,728 INFO L226 Difference]: Without dead ends: 575 [2018-11-23 08:32:41,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:32:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2018-11-23 08:32:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 563. [2018-11-23 08:32:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2018-11-23 08:32:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 711 transitions. [2018-11-23 08:32:41,751 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 711 transitions. Word has length 111 [2018-11-23 08:32:41,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:41,751 INFO L480 AbstractCegarLoop]: Abstraction has 563 states and 711 transitions. [2018-11-23 08:32:41,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:32:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 711 transitions. [2018-11-23 08:32:41,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-23 08:32:41,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:41,753 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:41,753 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:41,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:41,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1968259300, now seen corresponding path program 1 times [2018-11-23 08:32:41,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:41,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:41,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:41,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:41,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:41,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:32:41,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:32:41,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:32:41,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:32:41,852 INFO L87 Difference]: Start difference. First operand 563 states and 711 transitions. Second operand 7 states. [2018-11-23 08:32:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:41,918 INFO L93 Difference]: Finished difference Result 966 states and 1219 transitions. [2018-11-23 08:32:41,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:32:41,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2018-11-23 08:32:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:41,921 INFO L225 Difference]: With dead ends: 966 [2018-11-23 08:32:41,921 INFO L226 Difference]: Without dead ends: 567 [2018-11-23 08:32:41,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:32:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2018-11-23 08:32:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 561. [2018-11-23 08:32:41,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2018-11-23 08:32:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 705 transitions. [2018-11-23 08:32:41,944 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 705 transitions. Word has length 111 [2018-11-23 08:32:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:41,944 INFO L480 AbstractCegarLoop]: Abstraction has 561 states and 705 transitions. [2018-11-23 08:32:41,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:32:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 705 transitions. [2018-11-23 08:32:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-23 08:32:41,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:41,946 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:41,946 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:41,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:41,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2087928482, now seen corresponding path program 1 times [2018-11-23 08:32:41,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:41,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:41,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:41,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 08:32:42,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:32:42,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 08:32:42,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:32:42,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:32:42,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:32:42,059 INFO L87 Difference]: Start difference. First operand 561 states and 705 transitions. Second operand 6 states. [2018-11-23 08:32:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:32:42,159 INFO L93 Difference]: Finished difference Result 1109 states and 1397 transitions. [2018-11-23 08:32:42,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 08:32:42,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-11-23 08:32:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:32:42,162 INFO L225 Difference]: With dead ends: 1109 [2018-11-23 08:32:42,162 INFO L226 Difference]: Without dead ends: 562 [2018-11-23 08:32:42,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 08:32:42,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-11-23 08:32:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2018-11-23 08:32:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2018-11-23 08:32:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 706 transitions. [2018-11-23 08:32:42,187 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 706 transitions. Word has length 126 [2018-11-23 08:32:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:32:42,187 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 706 transitions. [2018-11-23 08:32:42,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:32:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 706 transitions. [2018-11-23 08:32:42,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-23 08:32:42,189 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:32:42,190 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:32:42,190 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:32:42,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:32:42,190 INFO L82 PathProgramCache]: Analyzing trace with hash -895829478, now seen corresponding path program 1 times [2018-11-23 08:32:42,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:32:42,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:32:42,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:42,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:42,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:32:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-23 08:32:42,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:32:42,370 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:32:42,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:32:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:32:42,574 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:32:42,607 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 59 [2018-11-23 08:32:42,666 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 62 [2018-11-23 08:32:42,711 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,723 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,748 INFO L478 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 65 [2018-11-23 08:32:42,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 68 [2018-11-23 08:32:42,819 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,842 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,849 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 71 [2018-11-23 08:32:42,860 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,870 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 74 [2018-11-23 08:32:42,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 83 [2018-11-23 08:32:42,989 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:42,999 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,005 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,008 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,017 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 97 [2018-11-23 08:32:43,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 92 [2018-11-23 08:32:43,040 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,073 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,104 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,286 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,310 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,320 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,328 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,336 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,344 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,359 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 77 [2018-11-23 08:32:43,550 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2018-11-23 08:32:43,559 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,567 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,577 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,580 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,593 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 124 [2018-11-23 08:32:43,617 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 96 [2018-11-23 08:32:43,618 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,660 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,724 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,727 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,732 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,736 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,739 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,743 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,747 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,750 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,753 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,757 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 114 [2018-11-23 08:32:43,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 124 [2018-11-23 08:32:43,794 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:43,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,903 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,908 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,910 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,913 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,916 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,918 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,921 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,923 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,925 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,927 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,929 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,931 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,933 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:43,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 112 [2018-11-23 08:32:43,940 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-23 08:32:44,070 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 08:32:44,184 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 08:32:44,340 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 08:32:44,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2018-11-23 08:32:44,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 60 [2018-11-23 08:32:44,613 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,619 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,621 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,627 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,628 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,629 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,635 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:44,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 93 [2018-11-23 08:32:44,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 88 [2018-11-23 08:32:44,669 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:44,705 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:44,732 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:44,763 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:44,937 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 08:32:45,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 69 [2018-11-23 08:32:45,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 57 [2018-11-23 08:32:45,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 56 [2018-11-23 08:32:45,250 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,264 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,270 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,272 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,277 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 89 [2018-11-23 08:32:45,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 84 [2018-11-23 08:32:45,300 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:45,324 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:45,344 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:45,365 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:45,389 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:45,576 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-23 08:32:45,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 62 [2018-11-23 08:32:45,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2018-11-23 08:32:45,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 53 [2018-11-23 08:32:45,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 52 [2018-11-23 08:32:45,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,982 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,988 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,995 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,996 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:45,997 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 85 [2018-11-23 08:32:46,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 80 [2018-11-23 08:32:46,033 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,060 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,086 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,110 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,133 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,155 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,355 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 08:32:46,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 55 [2018-11-23 08:32:46,602 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2018-11-23 08:32:46,615 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 50 [2018-11-23 08:32:46,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2018-11-23 08:32:46,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2018-11-23 08:32:46,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,694 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,699 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,703 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,704 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,711 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:32:46,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 81 [2018-11-23 08:32:46,744 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 76 [2018-11-23 08:32:46,745 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,768 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,790 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,812 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,835 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,855 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:46,874 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:32:47,078 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 9 xjuncts. [2018-11-23 08:32:47,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 9 xjuncts. [2018-11-23 08:32:47,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 56 dim-0 vars, and 9 xjuncts. [2018-11-23 08:32:47,497 INFO L202 ElimStorePlain]: Needed 38 recursive calls to eliminate 8 variables, input treesize:77, output treesize:783 [2018-11-23 08:33:31,055 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 08:33:31,256 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:33:31,256 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 45 more [2018-11-23 08:33:31,259 INFO L168 Benchmark]: Toolchain (without parser) took 53277.03 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 453.5 MB). Free memory was 951.1 MB in the beginning and 1.3 GB in the end (delta: -299.5 MB). Peak memory consumption was 154.0 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:31,260 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:33:31,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 111.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:31,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.32 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. [2018-11-23 08:33:31,261 INFO L168 Benchmark]: Boogie Preprocessor took 50.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:31,262 INFO L168 Benchmark]: RCFGBuilder took 583.89 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: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:31,262 INFO L168 Benchmark]: TraceAbstraction took 51757.91 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 239.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -167.0 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:31,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 850.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 111.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.32 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. * Boogie Preprocessor took 50.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 583.89 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: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 51757.91 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 239.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -167.0 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 08:33:32,482 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:33:32,484 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:33:32,493 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:33:32,493 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:33:32,494 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:33:32,495 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:33:32,496 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:33:32,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:33:32,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:33:32,498 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:33:32,499 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:33:32,500 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:33:32,501 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:33:32,501 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:33:32,502 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:33:32,503 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:33:32,504 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:33:32,505 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:33:32,507 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:33:32,508 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:33:32,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:33:32,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:33:32,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:33:32,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:33:32,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:33:32,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:33:32,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:33:32,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:33:32,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:33:32,515 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:33:32,516 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:33:32,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:33:32,516 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:33:32,517 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:33:32,518 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:33:32,518 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2018-11-23 08:33:32,529 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:33:32,529 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:33:32,530 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:33:32,530 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:33:32,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:33:32,531 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:33:32,531 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:33:32,531 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 08:33:32,532 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:33:32,533 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:33:32,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:33:32,535 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:33:32,536 INFO L133 SettingsManager]: * To the following directory=dump/ 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_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fc5757f33cca8abec0d298407c4598828d90b8e [2018-11-23 08:33:32,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:33:32,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:33:32,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:33:32,580 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:33:32,580 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:33:32,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:33:32,628 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e757983d5/165e0a064ac5477aba994be3c2fe7c05/FLAGe99a191bb [2018-11-23 08:33:33,150 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:33:33,150 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:33:33,171 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e757983d5/165e0a064ac5477aba994be3c2fe7c05/FLAGe99a191bb [2018-11-23 08:33:33,600 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/data/e757983d5/165e0a064ac5477aba994be3c2fe7c05 [2018-11-23 08:33:33,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:33:33,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:33:33,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:33:33,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:33:33,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:33:33,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:33" (1/1) ... [2018-11-23 08:33:33,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411c904e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:33, skipping insertion in model container [2018-11-23 08:33:33,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:33" (1/1) ... [2018-11-23 08:33:33,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:33:33,684 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:33:34,223 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:33:34,371 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:33:34,508 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:33:34,542 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:33:34,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34 WrapperNode [2018-11-23 08:33:34,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:33:34,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:33:34,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:33:34,544 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:33:34,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:33:34,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:33:34,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:33:34,580 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:33:34,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... [2018-11-23 08:33:34,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:33:34,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:33:34,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:33:34,634 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:33:34,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:33:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2018-11-23 08:33:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2018-11-23 08:33:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:33:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:33:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-23 08:33:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-23 08:33:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:33:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 08:33:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-23 08:33:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-23 08:33:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 08:33:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-23 08:33:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-23 08:33:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 08:33:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-23 08:33:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-23 08:33:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2018-11-23 08:33:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-23 08:33:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2018-11-23 08:33:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-23 08:33:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-23 08:33:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-23 08:33:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-23 08:33:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-23 08:33:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-23 08:33:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-23 08:33:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-23 08:33:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-23 08:33:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-23 08:33:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-23 08:33:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:33:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:33:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2018-11-23 08:33:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2018-11-23 08:33:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 08:33:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-23 08:33:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-23 08:33:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:33:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:33:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2018-11-23 08:33:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2018-11-23 08:33:35,344 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:33:35,345 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 08:33:35,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35 BoogieIcfgContainer [2018-11-23 08:33:35,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:33:35,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:33:35,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:33:35,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:33:35,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:33" (1/3) ... [2018-11-23 08:33:35,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e13169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:35, skipping insertion in model container [2018-11-23 08:33:35,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34" (2/3) ... [2018-11-23 08:33:35,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e13169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:35, skipping insertion in model container [2018-11-23 08:33:35,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35" (3/3) ... [2018-11-23 08:33:35,352 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point_true-unreach-call.cil.out.c [2018-11-23 08:33:35,360 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:33:35,366 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:33:35,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:33:35,403 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:33:35,403 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:33:35,403 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:33:35,404 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:33:35,404 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:33:35,404 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:33:35,404 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:33:35,404 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:33:35,404 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:33:35,420 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-11-23 08:33:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-23 08:33:35,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:35,428 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:35,429 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:35,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:35,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1102865958, now seen corresponding path program 1 times [2018-11-23 08:33:35,439 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:35,439 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:35,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:35,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:33:35,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:35,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:35,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:33:35,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:33:35,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:33:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:35,768 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-11-23 08:33:35,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:35,837 INFO L93 Difference]: Finished difference Result 300 states and 392 transitions. [2018-11-23 08:33:35,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:33:35,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-11-23 08:33:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:35,849 INFO L225 Difference]: With dead ends: 300 [2018-11-23 08:33:35,849 INFO L226 Difference]: Without dead ends: 184 [2018-11-23 08:33:35,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:35,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-23 08:33:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 181. [2018-11-23 08:33:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-23 08:33:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 225 transitions. [2018-11-23 08:33:35,895 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 225 transitions. Word has length 63 [2018-11-23 08:33:35,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:35,897 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 225 transitions. [2018-11-23 08:33:35,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:33:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 225 transitions. [2018-11-23 08:33:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-23 08:33:35,901 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:35,901 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:35,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:35,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:35,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1222542553, now seen corresponding path program 1 times [2018-11-23 08:33:35,902 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:35,902 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:35,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:36,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 08:33:36,140 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:36,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:36,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:33:36,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:33:36,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:33:36,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:36,144 INFO L87 Difference]: Start difference. First operand 181 states and 225 transitions. Second operand 3 states. [2018-11-23 08:33:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:36,206 INFO L93 Difference]: Finished difference Result 381 states and 483 transitions. [2018-11-23 08:33:36,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:33:36,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2018-11-23 08:33:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:36,211 INFO L225 Difference]: With dead ends: 381 [2018-11-23 08:33:36,211 INFO L226 Difference]: Without dead ends: 231 [2018-11-23 08:33:36,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-11-23 08:33:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 221. [2018-11-23 08:33:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-23 08:33:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 281 transitions. [2018-11-23 08:33:36,239 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 281 transitions. Word has length 85 [2018-11-23 08:33:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:36,240 INFO L480 AbstractCegarLoop]: Abstraction has 221 states and 281 transitions. [2018-11-23 08:33:36,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:33:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 281 transitions. [2018-11-23 08:33:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 08:33:36,244 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:36,245 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:36,245 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:36,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash -996531992, now seen corresponding path program 1 times [2018-11-23 08:33:36,247 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:36,247 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:36,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:36,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 08:33:36,778 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:36,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:36,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 08:33:36,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:33:36,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:33:36,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:33:36,783 INFO L87 Difference]: Start difference. First operand 221 states and 281 transitions. Second operand 6 states. [2018-11-23 08:33:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:36,881 INFO L93 Difference]: Finished difference Result 429 states and 549 transitions. [2018-11-23 08:33:36,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 08:33:36,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-11-23 08:33:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:36,883 INFO L225 Difference]: With dead ends: 429 [2018-11-23 08:33:36,884 INFO L226 Difference]: Without dead ends: 222 [2018-11-23 08:33:36,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 08:33:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-23 08:33:36,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2018-11-23 08:33:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-23 08:33:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 282 transitions. [2018-11-23 08:33:36,907 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 282 transitions. Word has length 99 [2018-11-23 08:33:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:36,907 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 282 transitions. [2018-11-23 08:33:36,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:33:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 282 transitions. [2018-11-23 08:33:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-23 08:33:36,909 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:36,909 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:36,910 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:36,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:36,911 INFO L82 PathProgramCache]: Analyzing trace with hash 468542320, now seen corresponding path program 1 times [2018-11-23 08:33:36,912 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:36,912 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:36,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:37,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 08:33:37,418 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:33:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (5)] Exception during sending of exit command (exit): Broken pipe [2018-11-23 08:33:37,680 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:33:37,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-11-23 08:33:37,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 08:33:37,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 08:33:37,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-23 08:33:37,682 INFO L87 Difference]: Start difference. First operand 222 states and 282 transitions. Second operand 11 states. [2018-11-23 08:33:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:37,874 INFO L93 Difference]: Finished difference Result 431 states and 551 transitions. [2018-11-23 08:33:37,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:33:37,876 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2018-11-23 08:33:37,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:37,878 INFO L225 Difference]: With dead ends: 431 [2018-11-23 08:33:37,878 INFO L226 Difference]: Without dead ends: 223 [2018-11-23 08:33:37,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-23 08:33:37,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-23 08:33:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-11-23 08:33:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-11-23 08:33:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 283 transitions. [2018-11-23 08:33:37,897 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 283 transitions. Word has length 101 [2018-11-23 08:33:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:37,897 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 283 transitions. [2018-11-23 08:33:37,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 08:33:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 283 transitions. [2018-11-23 08:33:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 08:33:37,900 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:37,900 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:37,900 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:37,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1493032536, now seen corresponding path program 2 times [2018-11-23 08:33:37,902 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:37,902 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:37,931 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 08:33:38,205 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 08:33:38,206 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 08:33:38,319 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 08:33:38,358 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:38,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:38,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:33:38,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:33:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:33:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:33:38,362 INFO L87 Difference]: Start difference. First operand 223 states and 283 transitions. Second operand 7 states. [2018-11-23 08:33:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:38,401 INFO L93 Difference]: Finished difference Result 431 states and 555 transitions. [2018-11-23 08:33:38,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:33:38,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2018-11-23 08:33:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:38,404 INFO L225 Difference]: With dead ends: 431 [2018-11-23 08:33:38,404 INFO L226 Difference]: Without dead ends: 241 [2018-11-23 08:33:38,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:33:38,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-11-23 08:33:38,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 230. [2018-11-23 08:33:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-11-23 08:33:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 289 transitions. [2018-11-23 08:33:38,418 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 289 transitions. Word has length 103 [2018-11-23 08:33:38,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:38,419 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 289 transitions. [2018-11-23 08:33:38,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:33:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 289 transitions. [2018-11-23 08:33:38,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 08:33:38,420 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:38,421 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:38,421 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:38,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:38,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1522071082, now seen corresponding path program 1 times [2018-11-23 08:33:38,423 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:38,424 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:38,456 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:33:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:38,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 08:33:38,594 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:38,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:38,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:33:38,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:33:38,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:33:38,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:38,597 INFO L87 Difference]: Start difference. First operand 230 states and 289 transitions. Second operand 3 states. [2018-11-23 08:33:38,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:38,614 INFO L93 Difference]: Finished difference Result 418 states and 537 transitions. [2018-11-23 08:33:38,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:33:38,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2018-11-23 08:33:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:38,617 INFO L225 Difference]: With dead ends: 418 [2018-11-23 08:33:38,617 INFO L226 Difference]: Without dead ends: 221 [2018-11-23 08:33:38,618 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-23 08:33:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 215. [2018-11-23 08:33:38,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-23 08:33:38,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 272 transitions. [2018-11-23 08:33:38,629 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 272 transitions. Word has length 103 [2018-11-23 08:33:38,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:38,629 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 272 transitions. [2018-11-23 08:33:38,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:33:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 272 transitions. [2018-11-23 08:33:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-23 08:33:38,630 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:38,630 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:38,631 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:38,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:38,631 INFO L82 PathProgramCache]: Analyzing trace with hash -406474196, now seen corresponding path program 1 times [2018-11-23 08:33:38,631 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:38,632 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:38,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:39,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-23 08:33:39,057 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:33:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 08:33:39,328 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:33:39,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-23 08:33:39,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 08:33:39,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 08:33:39,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-11-23 08:33:39,329 INFO L87 Difference]: Start difference. First operand 215 states and 272 transitions. Second operand 13 states. [2018-11-23 08:33:39,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:39,545 INFO L93 Difference]: Finished difference Result 417 states and 531 transitions. [2018-11-23 08:33:39,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 08:33:39,546 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2018-11-23 08:33:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:39,547 INFO L225 Difference]: With dead ends: 417 [2018-11-23 08:33:39,547 INFO L226 Difference]: Without dead ends: 216 [2018-11-23 08:33:39,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-11-23 08:33:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-23 08:33:39,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2018-11-23 08:33:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-23 08:33:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 273 transitions. [2018-11-23 08:33:39,556 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 273 transitions. Word has length 109 [2018-11-23 08:33:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:39,556 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 273 transitions. [2018-11-23 08:33:39,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 08:33:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 273 transitions. [2018-11-23 08:33:39,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-23 08:33:39,557 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:39,558 INFO L402 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:39,559 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:39,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:39,559 INFO L82 PathProgramCache]: Analyzing trace with hash -621480780, now seen corresponding path program 2 times [2018-11-23 08:33:39,559 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:39,559 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:39,588 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 08:33:39,841 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 08:33:39,842 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 08:33:39,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-23 08:33:40,039 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:40,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:40,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 08:33:40,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:33:40,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:33:40,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:33:40,043 INFO L87 Difference]: Start difference. First operand 216 states and 273 transitions. Second operand 6 states. [2018-11-23 08:33:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:40,492 INFO L93 Difference]: Finished difference Result 429 states and 545 transitions. [2018-11-23 08:33:40,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 08:33:40,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-11-23 08:33:40,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:40,494 INFO L225 Difference]: With dead ends: 429 [2018-11-23 08:33:40,494 INFO L226 Difference]: Without dead ends: 418 [2018-11-23 08:33:40,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 08:33:40,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2018-11-23 08:33:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 250. [2018-11-23 08:33:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-11-23 08:33:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 307 transitions. [2018-11-23 08:33:40,510 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 307 transitions. Word has length 111 [2018-11-23 08:33:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:40,511 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 307 transitions. [2018-11-23 08:33:40,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:33:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 307 transitions. [2018-11-23 08:33:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-23 08:33:40,512 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:40,512 INFO L402 BasicCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:40,513 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:40,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:40,513 INFO L82 PathProgramCache]: Analyzing trace with hash -225856786, now seen corresponding path program 1 times [2018-11-23 08:33:40,513 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:40,514 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:40,538 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:33:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:40,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-23 08:33:40,673 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:40,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:40,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:33:40,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:33:40,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:33:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:40,675 INFO L87 Difference]: Start difference. First operand 250 states and 307 transitions. Second operand 3 states. [2018-11-23 08:33:40,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:40,692 INFO L93 Difference]: Finished difference Result 371 states and 458 transitions. [2018-11-23 08:33:40,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:33:40,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-11-23 08:33:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:40,695 INFO L225 Difference]: With dead ends: 371 [2018-11-23 08:33:40,695 INFO L226 Difference]: Without dead ends: 259 [2018-11-23 08:33:40,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:33:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-23 08:33:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 250. [2018-11-23 08:33:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-11-23 08:33:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 305 transitions. [2018-11-23 08:33:40,707 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 305 transitions. Word has length 117 [2018-11-23 08:33:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:40,708 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 305 transitions. [2018-11-23 08:33:40,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:33:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 305 transitions. [2018-11-23 08:33:40,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-23 08:33:40,709 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:40,709 INFO L402 BasicCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:40,709 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:40,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:40,711 INFO L82 PathProgramCache]: Analyzing trace with hash 196845040, now seen corresponding path program 1 times [2018-11-23 08:33:40,711 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:40,711 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:40,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:41,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-23 08:33:41,156 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:33:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 08:33:41,477 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:33:41,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-23 08:33:41,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 08:33:41,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 08:33:41,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-23 08:33:41,478 INFO L87 Difference]: Start difference. First operand 250 states and 305 transitions. Second operand 15 states. [2018-11-23 08:33:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:41,801 INFO L93 Difference]: Finished difference Result 487 states and 597 transitions. [2018-11-23 08:33:41,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 08:33:41,801 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 117 [2018-11-23 08:33:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:41,802 INFO L225 Difference]: With dead ends: 487 [2018-11-23 08:33:41,802 INFO L226 Difference]: Without dead ends: 251 [2018-11-23 08:33:41,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-11-23 08:33:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-23 08:33:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2018-11-23 08:33:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-11-23 08:33:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2018-11-23 08:33:41,813 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 117 [2018-11-23 08:33:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:41,813 INFO L480 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2018-11-23 08:33:41,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 08:33:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2018-11-23 08:33:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-23 08:33:41,814 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:41,815 INFO L402 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:41,815 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:41,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:41,815 INFO L82 PathProgramCache]: Analyzing trace with hash -351919576, now seen corresponding path program 2 times [2018-11-23 08:33:41,815 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:41,816 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:41,846 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 08:33:42,820 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 08:33:42,821 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 08:33:42,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 08:33:43,019 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:43,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:43,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:33:43,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:33:43,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:33:43,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:33:43,024 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand 7 states. [2018-11-23 08:33:43,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:43,069 INFO L93 Difference]: Finished difference Result 369 states and 453 transitions. [2018-11-23 08:33:43,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:33:43,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2018-11-23 08:33:43,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:43,071 INFO L225 Difference]: With dead ends: 369 [2018-11-23 08:33:43,071 INFO L226 Difference]: Without dead ends: 256 [2018-11-23 08:33:43,071 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:33:43,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-11-23 08:33:43,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2018-11-23 08:33:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-11-23 08:33:43,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 303 transitions. [2018-11-23 08:33:43,082 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 303 transitions. Word has length 119 [2018-11-23 08:33:43,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:43,082 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 303 transitions. [2018-11-23 08:33:43,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:33:43,082 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 303 transitions. [2018-11-23 08:33:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 08:33:43,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:43,085 INFO L402 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:43,085 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:43,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1422976994, now seen corresponding path program 1 times [2018-11-23 08:33:43,086 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:43,086 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:43,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:33:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:43,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 08:33:43,919 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:43,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:43,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:33:43,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:33:43,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:33:43,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:33:43,927 INFO L87 Difference]: Start difference. First operand 250 states and 303 transitions. Second operand 5 states. [2018-11-23 08:33:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:44,135 INFO L93 Difference]: Finished difference Result 475 states and 583 transitions. [2018-11-23 08:33:44,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 08:33:44,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2018-11-23 08:33:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:44,137 INFO L225 Difference]: With dead ends: 475 [2018-11-23 08:33:44,138 INFO L226 Difference]: Without dead ends: 260 [2018-11-23 08:33:44,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:33:44,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-11-23 08:33:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2018-11-23 08:33:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-11-23 08:33:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 307 transitions. [2018-11-23 08:33:44,148 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 307 transitions. Word has length 134 [2018-11-23 08:33:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:44,148 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 307 transitions. [2018-11-23 08:33:44,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:33:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 307 transitions. [2018-11-23 08:33:44,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 08:33:44,149 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:33:44,149 INFO L402 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:33:44,150 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:33:44,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:33:44,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1382302244, now seen corresponding path program 1 times [2018-11-23 08:33:44,150 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:33:44,150 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:33:44,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:33:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:33:44,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:33:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 08:33:45,969 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:33:45,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:33:45,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-23 08:33:45,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 08:33:45,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 08:33:45,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 08:33:45,974 INFO L87 Difference]: Start difference. First operand 254 states and 307 transitions. Second operand 14 states. [2018-11-23 08:33:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:33:51,582 INFO L93 Difference]: Finished difference Result 350 states and 427 transitions. [2018-11-23 08:33:51,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 08:33:51,584 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 134 [2018-11-23 08:33:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:33:51,585 INFO L225 Difference]: With dead ends: 350 [2018-11-23 08:33:51,585 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 08:33:51,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-11-23 08:33:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 08:33:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 08:33:51,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 08:33:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:33:51,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2018-11-23 08:33:51,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:33:51,586 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:33:51,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 08:33:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:33:51,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:33:51,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 08:33:51,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:33:51,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:33:51,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:33:51,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:33:52,128 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2018-11-23 08:33:52,716 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 14 [2018-11-23 08:33:53,140 INFO L448 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,140 INFO L451 ceAbstractionStarter]: At program point L-1-1(line -1) the Hoare annotation is: true [2018-11-23 08:33:53,140 INFO L451 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:33:53,140 INFO L448 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,140 INFO L451 ceAbstractionStarter]: At program point ldv_undef_intENTRY(lines 5909 5917) the Hoare annotation is: true [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point ldv_undef_intFINAL(lines 5909 5917) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point ldv_undef_intEXIT(lines 5909 5917) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6237(lines 6237 6268) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6188 6283) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6213(lines 6213 6276) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6238(line 6238) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6247(line 6247) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6214(line 6214) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6280(line 6280) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L448 ceAbstractionStarter]: For program point L6239(lines 6239 6245) no Hoare annotation was computed. [2018-11-23 08:33:53,141 INFO L444 ceAbstractionStarter]: At program point L6206(line 6206) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6206-1(line 6206) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6188 6283) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6215(lines 6215 6232) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6248(lines 6248 6264) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L444 ceAbstractionStarter]: At program point L6207(line 6207) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6240-1(line 6240) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6207-1(line 6207) no Hoare annotation was computed. [2018-11-23 08:33:53,142 INFO L444 ceAbstractionStarter]: At program point L6240(line 6240) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,142 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 6188 6283) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,142 INFO L444 ceAbstractionStarter]: At program point L6249(line 6249) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,142 INFO L448 ceAbstractionStarter]: For program point L6249-1(line 6249) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6274(line 6274) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6266(line 6266) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L444 ceAbstractionStarter]: At program point L6258(lines 6200 6282) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6250(lines 6250 6255) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6217(lines 6217 6228) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6250-2(lines 6248 6262) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L451 ceAbstractionStarter]: At program point L6275(line 6275) the Hoare annotation is: true [2018-11-23 08:33:53,143 INFO L451 ceAbstractionStarter]: At program point L6267(line 6267) the Hoare annotation is: true [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6234(line 6234) no Hoare annotation was computed. [2018-11-23 08:33:53,143 INFO L444 ceAbstractionStarter]: At program point L6201(line 6201) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,143 INFO L448 ceAbstractionStarter]: For program point L6201-1(line 6201) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6226(line 6226) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6218(line 6218) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6235(lines 6235 6272) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L451 ceAbstractionStarter]: At program point L6227(line 6227) the Hoare annotation is: true [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6219(lines 6219 6224) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L444 ceAbstractionStarter]: At program point L6277(lines 6200 6282) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,144 INFO L444 ceAbstractionStarter]: At program point L6203(line 6203) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6203-1(line 6203) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point L6220-1(line 6220) no Hoare annotation was computed. [2018-11-23 08:33:53,144 INFO L444 ceAbstractionStarter]: At program point L6220(line 6220) the Hoare annotation is: (or (not (= (_ bv0 32) |old(~ldv_state_variable_1~0)|)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,144 INFO L448 ceAbstractionStarter]: For program point ldv_init_zallocFINAL(lines 5888 5899) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point ldv_init_zallocEXIT(lines 5888 5899) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L451 ceAbstractionStarter]: At program point L5894(line 5894) the Hoare annotation is: true [2018-11-23 08:33:53,145 INFO L451 ceAbstractionStarter]: At program point ldv_init_zallocENTRY(lines 5888 5899) the Hoare annotation is: true [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point L5894-1(line 5894) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L444 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 6369 6387) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point L6374(lines 6374 6384) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point L6375-1(line 6375) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L444 ceAbstractionStarter]: At program point L6375(line 6375) the Hoare annotation is: (or (and (= |ldv_try_module_get_#in~module.offset| ldv_try_module_get_~module.offset) (= (_ bv1 32) ~ldv_module_refcounter~0) (= |ldv_try_module_get_#in~module.base| ldv_try_module_get_~module.base) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (bvadd |ldv_try_module_get_#in~module.offset| |ldv_try_module_get_#in~module.base|))))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point L6376(lines 6376 6381) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 6369 6387) no Hoare annotation was computed. [2018-11-23 08:33:53,145 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 6369 6387) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point pppox_initFINAL(lines 6167 6175) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L451 ceAbstractionStarter]: At program point pppox_initENTRY(lines 6167 6175) the Hoare annotation is: true [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point pppox_initEXIT(lines 6167 6175) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INTFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L451 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INTENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INTEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L448 ceAbstractionStarter]: For program point ldv_errorFINAL(lines 6303 6311) no Hoare annotation was computed. [2018-11-23 08:33:53,146 INFO L451 ceAbstractionStarter]: At program point ldv_errorENTRY(lines 6303 6311) the Hoare annotation is: true [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6309) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point ldv_errorEXIT(lines 6303 6311) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_5EXIT(lines 6284 6292) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L444 ceAbstractionStarter]: At program point L6289(line 6289) the Hoare annotation is: (or (and (= |ldv_try_module_get_5_#in~ldv_func_arg1.offset| ldv_try_module_get_5_~ldv_func_arg1.offset) (= ldv_try_module_get_5_~ldv_func_arg1.base |ldv_try_module_get_5_#in~ldv_func_arg1.base|) (= (_ bv1 32) ~ldv_module_refcounter~0)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point L6289-1(line 6289) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L444 ceAbstractionStarter]: At program point ldv_try_module_get_5ENTRY(lines 6284 6292) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_5FINAL(lines 6284 6292) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point L6140-2(lines 6140 6144) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point L6140(lines 6140 6144) no Hoare annotation was computed. [2018-11-23 08:33:53,147 INFO L448 ceAbstractionStarter]: For program point L6134(lines 6134 6138) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L444 ceAbstractionStarter]: At program point L6161(line 6161) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))))) (= (_ bv1 8) pppox_create_~tmp~9) (= (_ bv0 32) pppox_create_~tmp___0~3) (exists ((pppox_create_~protocol (_ BitVec 32))) (let ((.cse7 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse5 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse7)) (.cse6 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse7) (_ bv16 32)))) (let ((.cse3 (select (select |#memory_$Pointer$.base| .cse5) .cse6)) (.cse4 (select (select |#memory_$Pointer$.offset| .cse5) .cse6))) (and (= |pppox_create_#t~mem67.base| .cse3) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (bvadd .cse4 .cse3)))) (= |pppox_create_#t~mem67.offset| .cse4)))))))) [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point L6161-1(line 6161) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point pppox_createFINAL(lines 6126 6165) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point L6149-2(lines 6147 6159) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point L6149(lines 6149 6153) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point L6145(lines 6145 6159) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L444 ceAbstractionStarter]: At program point pppox_createENTRY(lines 6126 6165) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,148 INFO L444 ceAbstractionStarter]: At program point L6162(lines 6132 6164) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,148 INFO L448 ceAbstractionStarter]: For program point L6160-1(line 6160) no Hoare annotation was computed. [2018-11-23 08:33:53,148 INFO L444 ceAbstractionStarter]: At program point L6160(line 6160) the Hoare annotation is: (or (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))))) (= (_ bv1 8) pppox_create_~tmp~9) (= (_ bv0 32) pppox_create_~tmp___0~3)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point pppox_createEXIT(lines 6126 6165) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point L6148-1(line 6148) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L444 ceAbstractionStarter]: At program point L6148(line 6148) the Hoare annotation is: (or (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (and (= |pppox_create_#t~mem56.offset| (select (select |#memory_$Pointer$.offset| .cse0) .cse1)) (= (_ bv1 32) ~ldv_module_refcounter~0) (= |pppox_create_#t~mem56.base| (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-23 08:33:53,149 INFO L451 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 6424 6436) the Hoare annotation is: true [2018-11-23 08:33:53,149 INFO L444 ceAbstractionStarter]: At program point L6430(line 6430) the Hoare annotation is: (not (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point L6429(lines 6424 6436) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 6424 6436) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point ldv_stopFINAL(lines 5936 5944) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point ldv_stopEXIT(lines 5936 5944) no Hoare annotation was computed. [2018-11-23 08:33:53,149 INFO L451 ceAbstractionStarter]: At program point ldv_stopENTRY(lines 5936 5944) the Hoare annotation is: true [2018-11-23 08:33:53,149 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ~ldv_state_variable_1~0 (_ bv0 32))) [2018-11-23 08:33:53,150 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point L6394(lines 6394 6398) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L444 ceAbstractionStarter]: At program point L6395(line 6395) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32))))) [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point L6393-2(lines 6388 6405) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L444 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 6388 6405) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point L6393(lines 6393 6402) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point L6394-1(lines 6394 6398) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 6388 6405) no Hoare annotation was computed. [2018-11-23 08:33:53,150 INFO L448 ceAbstractionStarter]: For program point ldv_memsetFINAL(lines 5900 5908) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L444 ceAbstractionStarter]: At program point L5905(line 5905) the Hoare annotation is: (or (= |ldv_memset_#in~n| ldv_memset_~n) (not (= (_ bv0 32) ~ldv_state_variable_1~0)) (not (= (_ bv1 32) ~ldv_module_refcounter~0))) [2018-11-23 08:33:53,151 INFO L448 ceAbstractionStarter]: For program point L5905-1(line 5905) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L451 ceAbstractionStarter]: At program point ldv_memsetENTRY(lines 5900 5908) the Hoare annotation is: true [2018-11-23 08:33:53,151 INFO L448 ceAbstractionStarter]: For program point ldv_memsetEXIT(lines 5900 5908) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L451 ceAbstractionStarter]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:33:53,151 INFO L448 ceAbstractionStarter]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L448 ceAbstractionStarter]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_6EXIT(lines 6293 6301) no Hoare annotation was computed. [2018-11-23 08:33:53,151 INFO L444 ceAbstractionStarter]: At program point L6298(line 6298) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (and (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (= ldv_module_put_6_~ldv_func_arg1.offset |ldv_module_put_6_#in~ldv_func_arg1.offset|) (= |ldv_module_put_6_#in~ldv_func_arg1.base| ldv_module_put_6_~ldv_func_arg1.base))) [2018-11-23 08:33:53,151 INFO L444 ceAbstractionStarter]: At program point ldv_module_put_6ENTRY(lines 6293 6301) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-23 08:33:53,152 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_6FINAL(lines 6293 6301) no Hoare annotation was computed. [2018-11-23 08:33:53,152 INFO L448 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 6176 6184) no Hoare annotation was computed. [2018-11-23 08:33:53,152 INFO L451 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 6176 6184) the Hoare annotation is: true [2018-11-23 08:33:53,152 INFO L448 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 6176 6184) no Hoare annotation was computed. [2018-11-23 08:33:53,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:53 BoogieIcfgContainer [2018-11-23 08:33:53,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 08:33:53,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:33:53,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:33:53,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:33:53,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:35" (3/4) ... [2018-11-23 08:33:53,167 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_init [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 08:33:53,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get_5 [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_create [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_memset [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2018-11-23 08:33:53,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_6 [2018-11-23 08:33:53,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_exit [2018-11-23 08:33:53,184 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2018-11-23 08:33:53,184 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-23 08:33:53,184 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-23 08:33:53,185 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 08:33:53,185 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 08:33:53,208 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0bv32 == \old(ldv_state_variable_1)) || !(1bv32 == \old(ldv_module_refcounter))) || 1bv32 == ldv_module_refcounter [2018-11-23 08:33:53,209 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0bv32 == \old(ldv_state_variable_1)) || 1bv32 == ldv_module_refcounter) || !(1bv32 == \old(ldv_module_refcounter)) [2018-11-23 08:33:53,210 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-23 08:33:53,248 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68bd14e6-4186-4988-9715-fbcc1d8daf3c/bin-2019/uautomizer/witness.graphml [2018-11-23 08:33:53,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:33:53,249 INFO L168 Benchmark]: Toolchain (without parser) took 19646.39 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.6 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -209.0 MB). Peak memory consumption was 116.6 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,249 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 08:33:53,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 940.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.00 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. [2018-11-23 08:33:53,250 INFO L168 Benchmark]: Boogie Preprocessor took 53.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,250 INFO L168 Benchmark]: RCFGBuilder took 711.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,250 INFO L168 Benchmark]: TraceAbstraction took 17817.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 158.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -126.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,250 INFO L168 Benchmark]: Witness Printer took 84.71 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-11-23 08:33:53,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 940.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.00 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. * Boogie Preprocessor took 53.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 711.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17817.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 158.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -126.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Witness Printer took 84.71 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6309]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6200]: Loop Invariant Derived loop invariant: (!(0bv32 == \old(ldv_state_variable_1)) || 1bv32 == ldv_module_refcounter) || !(1bv32 == \old(ldv_module_refcounter)) - InvariantResult [Line: 5936]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6200]: Loop Invariant Derived loop invariant: (!(0bv32 == \old(ldv_state_variable_1)) || !(1bv32 == \old(ldv_module_refcounter))) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 6132]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 127 locations, 1 error locations. SAFE Result, 17.7s OverallTime, 13 OverallIterations, 8 TraceHistogramMax, 7.4s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 1889 SDtfs, 642 SDslu, 7623 SDs, 0 SdLazy, 1014 SolverSat, 131 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1734 GetRequests, 1636 SyntacticMatches, 5 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=12, 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, 13 MinimizatonAttempts, 219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 481 PreInvPairs, 516 NumberOfFragments, 798 HoareAnnotationTreeSize, 481 FomulaSimplifications, 1934 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 2219 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1395 NumberOfCodeBlocks, 1315 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1706 ConstructedInterpolants, 13 QuantifiedInterpolants, 404624 SizeOfPredicates, 38 NumberOfNonLiveVariables, 6799 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 581/648 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...