./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i --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_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/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 a89a64f5289ba9e048bf8d3e685f4757a2b71072 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:41:02,666 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:41:02,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:41:02,678 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:41:02,678 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:41:02,679 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:41:02,680 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:41:02,681 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:41:02,683 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:41:02,683 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:41:02,684 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:41:02,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:41:02,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:41:02,686 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:41:02,687 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:41:02,687 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:41:02,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:41:02,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:41:02,691 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:41:02,692 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:41:02,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:41:02,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:41:02,696 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:41:02,696 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:41:02,697 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:41:02,698 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:41:02,698 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:41:02,699 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:41:02,700 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:41:02,701 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:41:02,701 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:41:02,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:41:02,702 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:41:02,702 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:41:02,703 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:41:02,703 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:41:02,704 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-23 00:41:02,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:41:02,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:41:02,716 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:41:02,717 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:41:02,717 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:41:02,717 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:41:02,717 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 00:41:02,718 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:41:02,718 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:41:02,718 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:41:02,718 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:41:02,718 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:41:02,719 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:41:02,719 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:41:02,719 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:41:02,719 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:41:02,719 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:41:02,719 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:41:02,720 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:41:02,720 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 00:41:02,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:41:02,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:41:02,721 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:41:02,721 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_b127b26e-4758-4016-8e3e-bc738de3f6a8/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 -> a89a64f5289ba9e048bf8d3e685f4757a2b71072 [2018-11-23 00:41:02,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:41:02,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:41:02,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:41:02,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:41:02,764 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:41:02,765 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-23 00:41:02,807 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/data/55a45ce4f/8ebd7fc1d5d641a5afec256994a352fb/FLAG5e7fbad10 [2018-11-23 00:41:03,354 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:41:03,355 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-23 00:41:03,377 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/data/55a45ce4f/8ebd7fc1d5d641a5afec256994a352fb/FLAG5e7fbad10 [2018-11-23 00:41:03,591 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/data/55a45ce4f/8ebd7fc1d5d641a5afec256994a352fb [2018-11-23 00:41:03,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:41:03,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:41:03,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:41:03,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:41:03,600 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:41:03,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:41:03" (1/1) ... [2018-11-23 00:41:03,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e010b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:03, skipping insertion in model container [2018-11-23 00:41:03,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:41:03" (1/1) ... [2018-11-23 00:41:03,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:41:03,677 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:41:04,321 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:41:04,334 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:41:04,469 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:41:04,493 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:41:04,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04 WrapperNode [2018-11-23 00:41:04,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:41:04,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:41:04,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:41:04,494 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:41:04,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:41:04,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:41:04,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:41:04,528 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:41:04,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... [2018-11-23 00:41:04,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:41:04,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:41:04,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:41:04,567 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:41:04,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/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 00:41:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 00:41:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:41:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:41:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-23 00:41:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-23 00:41:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-23 00:41:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-23 00:41:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-23 00:41:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-23 00:41:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:41:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 00:41:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-23 00:41:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-23 00:41:04,629 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-23 00:41:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-23 00:41:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:41:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 00:41:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-23 00:41:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-23 00:41:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-23 00:41:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-23 00:41:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:41:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:41:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-23 00:41:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-23 00:41:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-23 00:41:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-23 00:41:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-23 00:41:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-23 00:41:04,790 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 00:41:04,790 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 00:41:05,073 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:41:05,074 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 00:41:05,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:05 BoogieIcfgContainer [2018-11-23 00:41:05,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:41:05,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:41:05,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:41:05,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:41:05,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:41:03" (1/3) ... [2018-11-23 00:41:05,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ac1a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:41:05, skipping insertion in model container [2018-11-23 00:41:05,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:04" (2/3) ... [2018-11-23 00:41:05,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ac1a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:41:05, skipping insertion in model container [2018-11-23 00:41:05,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:05" (3/3) ... [2018-11-23 00:41:05,081 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-23 00:41:05,089 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:41:05,095 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:41:05,108 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:41:05,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:41:05,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:41:05,134 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:41:05,135 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:41:05,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:41:05,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:41:05,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:41:05,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:41:05,136 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:41:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-23 00:41:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 00:41:05,159 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:05,160 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:05,162 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:05,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:05,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1059402160, now seen corresponding path program 1 times [2018-11-23 00:41:05,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:05,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:05,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:05,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:05,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:05,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:41:05,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:41:05,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:41:05,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:41:05,391 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2018-11-23 00:41:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:05,458 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-23 00:41:05,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:41:05,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-23 00:41:05,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:05,474 INFO L225 Difference]: With dead ends: 191 [2018-11-23 00:41:05,474 INFO L226 Difference]: Without dead ends: 114 [2018-11-23 00:41:05,477 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 00:41:05,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-23 00:41:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-23 00:41:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-23 00:41:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-23 00:41:05,532 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-23 00:41:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:05,533 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-23 00:41:05,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:41:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-23 00:41:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-23 00:41:05,535 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:05,536 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:05,536 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:05,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:05,537 INFO L82 PathProgramCache]: Analyzing trace with hash -585637001, now seen corresponding path program 1 times [2018-11-23 00:41:05,537 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:05,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:05,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:05,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:05,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:05,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:41:05,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:41:05,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:41:05,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:41:05,701 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-23 00:41:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:05,760 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-23 00:41:05,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:41:05,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-23 00:41:05,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:05,762 INFO L225 Difference]: With dead ends: 207 [2018-11-23 00:41:05,763 INFO L226 Difference]: Without dead ends: 108 [2018-11-23 00:41:05,765 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 00:41:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-23 00:41:05,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-23 00:41:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-23 00:41:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-23 00:41:05,782 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-23 00:41:05,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:05,782 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-23 00:41:05,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:41:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-23 00:41:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 00:41:05,783 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:05,784 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:05,784 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:05,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:05,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1243718701, now seen corresponding path program 1 times [2018-11-23 00:41:05,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:05,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:05,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:05,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:05,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:05,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 00:41:05,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:41:05,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:41:05,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:41:05,952 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 6 states. [2018-11-23 00:41:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:06,234 INFO L93 Difference]: Finished difference Result 157 states and 195 transitions. [2018-11-23 00:41:06,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:41:06,234 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-11-23 00:41:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:06,236 INFO L225 Difference]: With dead ends: 157 [2018-11-23 00:41:06,236 INFO L226 Difference]: Without dead ends: 154 [2018-11-23 00:41:06,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:41:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-23 00:41:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 104. [2018-11-23 00:41:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-23 00:41:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2018-11-23 00:41:06,258 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 49 [2018-11-23 00:41:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:06,258 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2018-11-23 00:41:06,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:41:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2018-11-23 00:41:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 00:41:06,259 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:06,260 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:06,260 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:06,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:06,260 INFO L82 PathProgramCache]: Analyzing trace with hash -26818538, now seen corresponding path program 1 times [2018-11-23 00:41:06,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:06,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:06,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:06,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:06,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:06,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:06,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:41:06,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:41:06,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:41:06,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:41:06,389 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand 7 states. [2018-11-23 00:41:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:06,425 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2018-11-23 00:41:06,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:41:06,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-23 00:41:06,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:06,428 INFO L225 Difference]: With dead ends: 168 [2018-11-23 00:41:06,428 INFO L226 Difference]: Without dead ends: 104 [2018-11-23 00:41:06,429 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 00:41:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-23 00:41:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-23 00:41:06,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-23 00:41:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2018-11-23 00:41:06,445 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 50 [2018-11-23 00:41:06,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:06,445 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2018-11-23 00:41:06,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:41:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2018-11-23 00:41:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-23 00:41:06,447 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:06,447 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:06,447 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:06,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:06,448 INFO L82 PathProgramCache]: Analyzing trace with hash -799234353, now seen corresponding path program 1 times [2018-11-23 00:41:06,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:06,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:06,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:06,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:06,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:06,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:06,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-23 00:41:06,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 00:41:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 00:41:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-23 00:41:06,830 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand 14 states. [2018-11-23 00:41:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:07,261 INFO L93 Difference]: Finished difference Result 192 states and 220 transitions. [2018-11-23 00:41:07,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 00:41:07,262 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-11-23 00:41:07,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:07,264 INFO L225 Difference]: With dead ends: 192 [2018-11-23 00:41:07,264 INFO L226 Difference]: Without dead ends: 124 [2018-11-23 00:41:07,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-11-23 00:41:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-23 00:41:07,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2018-11-23 00:41:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-23 00:41:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2018-11-23 00:41:07,279 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 65 [2018-11-23 00:41:07,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:07,280 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2018-11-23 00:41:07,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 00:41:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2018-11-23 00:41:07,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-23 00:41:07,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:41:07,281 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:41:07,281 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:41:07,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:41:07,282 INFO L82 PathProgramCache]: Analyzing trace with hash -267111145, now seen corresponding path program 1 times [2018-11-23 00:41:07,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:41:07,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:41:07,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:07,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:41:07,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:41:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:41:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:41:07,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:41:07,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 00:41:07,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 00:41:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 00:41:07,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:41:07,464 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 9 states. [2018-11-23 00:41:07,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:41:07,652 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-23 00:41:07,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 00:41:07,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-11-23 00:41:07,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:41:07,653 INFO L225 Difference]: With dead ends: 104 [2018-11-23 00:41:07,653 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:41:07,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:41:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:41:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:41:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:41:07,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:41:07,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2018-11-23 00:41:07,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:41:07,655 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:41:07,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 00:41:07,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:41:07,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:41:07,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:41:07,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:41:08,141 INFO L444 ceAbstractionStarter]: At program point L4959(line 4959) the Hoare annotation is: (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L444 ceAbstractionStarter]: At program point L4972(lines 4971 4986) the Hoare annotation is: (or (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,142 INFO L444 ceAbstractionStarter]: At program point L4999(lines 4955 5006) the Hoare annotation is: (or (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,142 INFO L444 ceAbstractionStarter]: At program point L4995(lines 4955 5006) the Hoare annotation is: (or (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L448 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-23 00:41:08,142 INFO L444 ceAbstractionStarter]: At program point L4993(lines 4955 5006) the Hoare annotation is: (or (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,143 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 4946 5007) the Hoare annotation is: (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,143 INFO L444 ceAbstractionStarter]: At program point L4987(lines 4955 5006) the Hoare annotation is: (or (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L444 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 5029 5048) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (<= |old(~ldv_module_refcounter~0)| 0)) [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L451 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-23 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,143 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 00:41:08,143 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L444 ceAbstractionStarter]: At program point L4914(line 4914) the Hoare annotation is: (or (let ((.cse0 (+ |old(~ldv_module_refcounter~0)| 1))) (and (<= .cse0 ~ldv_module_refcounter~0) (<= ~ldv_module_refcounter~0 .cse0) (let ((.cse5 (+ (* 8 pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse3 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse5)) (.cse4 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse5) 16))) (let ((.cse2 (select (select |#memory_$Pointer$.base| .cse3) .cse4)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse3) .cse4))) (<= (+ .cse1 .cse2) (+ (* 18446744073709551616 (div (+ .cse2 (+ .cse1 (- 1))) 18446744073709551616)) 18446744073709551615))))) (= pppox_create_~tmp~2 1))) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L444 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (<= |old(~ldv_module_refcounter~0)| 0)) [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L448 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-23 00:41:08,144 INFO L444 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (let ((.cse0 (+ |old(~ldv_module_refcounter~0)| 1))) (and (<= .cse0 ~ldv_module_refcounter~0) (<= ~ldv_module_refcounter~0 .cse0) (<= (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset|) (+ (* 18446744073709551616 (div (+ |pppox_create_#t~mem45.base| (+ |pppox_create_#t~mem45.offset| (- 1))) 18446744073709551616)) 18446744073709551615)) (let ((.cse5 (+ (* 8 pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse3 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse5)) (.cse4 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse5) 16))) (let ((.cse2 (select (select |#memory_$Pointer$.base| .cse3) .cse4)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse3) .cse4))) (<= (+ .cse1 .cse2) (+ (* 18446744073709551616 (div (+ .cse2 (+ .cse1 (- 1))) 18446744073709551616)) 18446744073709551615))))) (= pppox_create_~tmp~2 1)))) [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L444 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (<= |old(~ldv_module_refcounter~0)| 0) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L444 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (or (let ((.cse2 (+ (* 8 pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) 16))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |pppox_create_#t~mem35.base|) (= 1 ~ldv_module_refcounter~0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) |pppox_create_#t~mem35.offset|)))) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L451 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L444 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (or (< 1 ~ldv_module_refcounter~0) (<= ~ldv_module_refcounter~0 0)) [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-23 00:41:08,145 INFO L444 ceAbstractionStarter]: At program point L5105(line 5105) the Hoare annotation is: (or (and (= |ldv_try_module_get_1_#in~module.base| ldv_try_module_get_1_~module.base) (= 1 ~ldv_module_refcounter~0) (= |ldv_try_module_get_1_#in~module.offset| ldv_try_module_get_1_~module.offset)) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-23 00:41:08,145 INFO L448 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L444 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5100 5109) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (<= |old(~ldv_module_refcounter~0)| 0)) [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2018-11-23 00:41:08,146 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L444 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: (< |old(~ldv_module_refcounter~0)| 2) [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-23 00:41:08,146 INFO L448 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L444 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5049 5067) the Hoare annotation is: (or (< |old(~ldv_module_refcounter~0)| 2) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L451 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L451 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-23 00:41:08,147 INFO L451 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-23 00:41:08,147 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-23 00:41:08,148 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-23 00:41:08,148 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-23 00:41:08,148 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-23 00:41:08,148 INFO L444 ceAbstractionStarter]: At program point L5115(line 5115) the Hoare annotation is: (or (and (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (= ldv_module_put_2_~ldv_func_arg1.base |ldv_module_put_2_#in~ldv_func_arg1.base|) (= ldv_module_put_2_~ldv_func_arg1.offset |ldv_module_put_2_#in~ldv_func_arg1.offset|)) (< |old(~ldv_module_refcounter~0)| 2)) [2018-11-23 00:41:08,148 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-23 00:41:08,148 INFO L444 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5110 5119) the Hoare annotation is: (or (< |old(~ldv_module_refcounter~0)| 2) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-23 00:41:08,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:41:08 BoogieIcfgContainer [2018-11-23 00:41:08,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:41:08,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:41:08,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:41:08,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:41:08,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:05" (3/4) ... [2018-11-23 00:41:08,168 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:41:08,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:41:08,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get [2018-11-23 00:41:08,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_init [2018-11-23 00:41:08,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:41:08,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_create [2018-11-23 00:41:08,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-23 00:41:08,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get_1 [2018-11-23 00:41:08,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-11-23 00:41:08,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-23 00:41:08,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_exit [2018-11-23 00:41:08,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2018-11-23 00:41:08,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_2 [2018-11-23 00:41:08,183 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-11-23 00:41:08,184 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 00:41:08,184 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 00:41:08,207 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-23 00:41:08,208 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-23 00:41:08,208 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-23 00:41:08,208 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-23 00:41:08,208 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-23 00:41:08,209 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 < \old(ldv_module_refcounter) || \old(ldv_module_refcounter) <= 0) || \old(ldv_module_refcounter) == ldv_module_refcounter [2018-11-23 00:41:08,239 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b127b26e-4758-4016-8e3e-bc738de3f6a8/bin-2019/uautomizer/witness.graphml [2018-11-23 00:41:08,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:41:08,241 INFO L168 Benchmark]: Toolchain (without parser) took 4645.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 952.3 MB in the beginning and 951.6 MB in the end (delta: 667.1 kB). Peak memory consumption was 161.6 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,243 INFO L168 Benchmark]: CDTParser took 0.20 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 00:41:08,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 896.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,244 INFO L168 Benchmark]: Boogie Preprocessor took 38.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,244 INFO L168 Benchmark]: RCFGBuilder took 507.99 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,244 INFO L168 Benchmark]: TraceAbstraction took 3086.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.1 MB in the end (delta: 125.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,244 INFO L168 Benchmark]: Witness Printer took 77.72 ms. Allocated memory is still 1.2 GB. Free memory was 955.1 MB in the beginning and 951.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:41:08,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 896.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.99 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3086.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.1 MB in the end (delta: 125.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. * Witness Printer took 77.72 ms. Allocated memory is still 1.2 GB. Free memory was 955.1 MB in the beginning and 951.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5012]: 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: 4955]: Loop Invariant Derived loop invariant: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4883]: Loop Invariant Derived loop invariant: (1 < \old(ldv_module_refcounter) || \old(ldv_module_refcounter) <= 0) || \old(ldv_module_refcounter) == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4971]: Loop Invariant Derived loop invariant: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 78 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 480 SDtfs, 427 SDslu, 1815 SDs, 0 SdLazy, 465 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=1, 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, 6 MinimizatonAttempts, 79 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 123 PreInvPairs, 141 NumberOfFragments, 493 HoareAnnotationTreeSize, 123 FomulaSimplifications, 407 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 1342 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 77565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...