./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_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/config/TaipanReach.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_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan --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 Taipan --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 [2018-11-22 22:33:19,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:33:19,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:33:19,820 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:33:19,820 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:33:19,821 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:33:19,822 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:33:19,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:33:19,824 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:33:19,825 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:33:19,825 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:33:19,826 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:33:19,826 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:33:19,827 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:33:19,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:33:19,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:33:19,829 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:33:19,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:33:19,831 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:33:19,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:33:19,833 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:33:19,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:33:19,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:33:19,836 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:33:19,836 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:33:19,836 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:33:19,837 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:33:19,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:33:19,838 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:33:19,839 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:33:19,839 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:33:19,840 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:33:19,840 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:33:19,840 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:33:19,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:33:19,841 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:33:19,841 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-22 22:33:19,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:33:19,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:33:19,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 22:33:19,853 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 22:33:19,853 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 22:33:19,854 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-22 22:33:19,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 22:33:19,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 22:33:19,854 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 22:33:19,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:33:19,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:33:19,856 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:33:19,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:33:19,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:33:19,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:33:19,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:33:19,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:33:19,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:33:19,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:33:19,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 22:33:19,858 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-22 22:33:19,858 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a89a64f5289ba9e048bf8d3e685f4757a2b71072 [2018-11-22 22:33:19,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:33:19,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:33:19,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:33:19,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:33:19,899 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:33:19,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-22 22:33:19,956 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/data/12c2d3e5a/124f357e23974743a2d6acc561bc3ae4/FLAGbcd80a13a [2018-11-22 22:33:20,472 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:33:20,473 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-22 22:33:20,492 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/data/12c2d3e5a/124f357e23974743a2d6acc561bc3ae4/FLAGbcd80a13a [2018-11-22 22:33:20,924 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/data/12c2d3e5a/124f357e23974743a2d6acc561bc3ae4 [2018-11-22 22:33:20,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:33:20,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:33:20,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:33:20,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:33:20,933 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:33:20,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:33:20" (1/1) ... [2018-11-22 22:33:20,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586411dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:20, skipping insertion in model container [2018-11-22 22:33:20,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:33:20" (1/1) ... [2018-11-22 22:33:20,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:33:21,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:33:21,530 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:33:21,540 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:33:21,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:33:21,655 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:33:21,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21 WrapperNode [2018-11-22 22:33:21,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:33:21,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:33:21,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:33:21,656 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:33:21,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:33:21,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:33:21,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:33:21,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:33:21,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... [2018-11-22 22:33:21,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:33:21,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:33:21,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:33:21,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:33:21,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:33:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-22 22:33:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 22:33:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-22 22:33:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-22 22:33:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-22 22:33:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-22 22:33:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-22 22:33:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-22 22:33:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 22:33:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 22:33:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-22 22:33:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-22 22:33:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-22 22:33:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-22 22:33:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-22 22:33:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:33:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:33:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-22 22:33:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-22 22:33:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-22 22:33:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-22 22:33:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-22 22:33:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-22 22:33:21,928 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-22 22:33:21,928 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-22 22:33:22,161 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:33:22,162 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-22 22:33:22,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:33:22 BoogieIcfgContainer [2018-11-22 22:33:22,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:33:22,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:33:22,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:33:22,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:33:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:33:20" (1/3) ... [2018-11-22 22:33:22,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e763a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:33:22, skipping insertion in model container [2018-11-22 22:33:22,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:33:21" (2/3) ... [2018-11-22 22:33:22,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e763a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:33:22, skipping insertion in model container [2018-11-22 22:33:22,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:33:22" (3/3) ... [2018-11-22 22:33:22,170 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-22 22:33:22,177 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:33:22,184 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 22:33:22,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 22:33:22,222 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:33:22,222 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:33:22,222 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:33:22,222 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:33:22,222 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:33:22,222 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:33:22,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:33:22,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:33:22,238 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-22 22:33:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-22 22:33:22,243 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:22,243 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:33:22,245 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:22,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:22,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1059402160, now seen corresponding path program 1 times [2018-11-22 22:33:22,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:22,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:22,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,302 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:22,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:22,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 22:33:22,436 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:22,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 22:33:22,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 22:33:22,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 22:33:22,455 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2018-11-22 22:33:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:22,519 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-22 22:33:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 22:33:22,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-22 22:33:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:22,531 INFO L225 Difference]: With dead ends: 191 [2018-11-22 22:33:22,532 INFO L226 Difference]: Without dead ends: 114 [2018-11-22 22:33:22,535 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 [2018-11-22 22:33:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-22 22:33:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-22 22:33:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-22 22:33:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-22 22:33:22,582 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-22 22:33:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:22,582 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-22 22:33:22,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 22:33:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-22 22:33:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-22 22:33:22,585 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:22,585 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] [2018-11-22 22:33:22,585 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:22,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:22,586 INFO L82 PathProgramCache]: Analyzing trace with hash -585637001, now seen corresponding path program 1 times [2018-11-22 22:33:22,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:22,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:22,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,593 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:22,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:22,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:33:22,704 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:22,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:33:22,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:33:22,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:33:22,706 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-22 22:33:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:22,746 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-22 22:33:22,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:33:22,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-22 22:33:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:22,748 INFO L225 Difference]: With dead ends: 207 [2018-11-22 22:33:22,748 INFO L226 Difference]: Without dead ends: 108 [2018-11-22 22:33:22,749 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 [2018-11-22 22:33:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-22 22:33:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-22 22:33:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-22 22:33:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-22 22:33:22,761 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-22 22:33:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:22,761 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-22 22:33:22,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:33:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-22 22:33:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-22 22:33:22,763 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:22,763 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] [2018-11-22 22:33:22,763 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:22,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:22,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1243718701, now seen corresponding path program 1 times [2018-11-22 22:33:22,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:22,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:22,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:22,768 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:22,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:22,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:22,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 22:33:22,910 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:22,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 22:33:22,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 22:33:22,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-22 22:33:22,912 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 6 states. [2018-11-22 22:33:23,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:23,210 INFO L93 Difference]: Finished difference Result 157 states and 195 transitions. [2018-11-22 22:33:23,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 22:33:23,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-11-22 22:33:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:23,213 INFO L225 Difference]: With dead ends: 157 [2018-11-22 22:33:23,213 INFO L226 Difference]: Without dead ends: 154 [2018-11-22 22:33:23,213 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 [2018-11-22 22:33:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-22 22:33:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 104. [2018-11-22 22:33:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-22 22:33:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2018-11-22 22:33:23,233 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 49 [2018-11-22 22:33:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:23,233 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2018-11-22 22:33:23,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 22:33:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2018-11-22 22:33:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-22 22:33:23,235 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:23,235 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] [2018-11-22 22:33:23,236 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:23,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -26818538, now seen corresponding path program 1 times [2018-11-22 22:33:23,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:23,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:23,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:23,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:23,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:23,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:23,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:33:23,329 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:23,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:33:23,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:33:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:33:23,330 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand 7 states. [2018-11-22 22:33:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:23,367 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2018-11-22 22:33:23,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:33:23,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-22 22:33:23,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:23,369 INFO L225 Difference]: With dead ends: 168 [2018-11-22 22:33:23,370 INFO L226 Difference]: Without dead ends: 104 [2018-11-22 22:33:23,370 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 [2018-11-22 22:33:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-22 22:33:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-22 22:33:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-22 22:33:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2018-11-22 22:33:23,384 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 50 [2018-11-22 22:33:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:23,385 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2018-11-22 22:33:23,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:33:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2018-11-22 22:33:23,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-22 22:33:23,386 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:23,387 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] [2018-11-22 22:33:23,387 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:23,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:23,387 INFO L82 PathProgramCache]: Analyzing trace with hash -799234353, now seen corresponding path program 1 times [2018-11-22 22:33:23,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:23,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:23,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:23,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:23,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:23,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:23,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-22 22:33:23,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:23,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-22 22:33:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-22 22:33:23,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-22 22:33:23,703 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand 14 states. [2018-11-22 22:33:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:24,021 INFO L93 Difference]: Finished difference Result 192 states and 220 transitions. [2018-11-22 22:33:24,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-22 22:33:24,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-11-22 22:33:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:24,023 INFO L225 Difference]: With dead ends: 192 [2018-11-22 22:33:24,024 INFO L226 Difference]: Without dead ends: 124 [2018-11-22 22:33:24,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-11-22 22:33:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-22 22:33:24,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2018-11-22 22:33:24,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-22 22:33:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2018-11-22 22:33:24,038 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 65 [2018-11-22 22:33:24,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:24,038 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2018-11-22 22:33:24,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-22 22:33:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2018-11-22 22:33:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-22 22:33:24,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:33:24,040 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] [2018-11-22 22:33:24,040 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:33:24,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:33:24,041 INFO L82 PathProgramCache]: Analyzing trace with hash -267111145, now seen corresponding path program 1 times [2018-11-22 22:33:24,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:33:24,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:24,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:33:24,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:33:24,044 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:33:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:33:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:33:24,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:33:24,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-22 22:33:24,336 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:33:24,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 22:33:24,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 22:33:24,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-22 22:33:24,337 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 9 states. [2018-11-22 22:33:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:33:24,527 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-22 22:33:24,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 22:33:24,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-11-22 22:33:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:33:24,528 INFO L225 Difference]: With dead ends: 104 [2018-11-22 22:33:24,528 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 22:33:24,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-22 22:33:24,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 22:33:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 22:33:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 22:33:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 22:33:24,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2018-11-22 22:33:24,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:33:24,530 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:33:24,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 22:33:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:33:24,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 22:33:24,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 22:33:24,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 22:33:24,963 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)|))) [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-22 22:33:24,964 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-22 22:33:24,964 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)|))) [2018-11-22 22:33:24,964 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)|))) [2018-11-22 22:33:24,964 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)|))) [2018-11-22 22:33:24,965 INFO L448 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-22 22:33:24,965 INFO L448 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-22 22:33:24,965 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)|))) [2018-11-22 22:33:24,965 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)|))) [2018-11-22 22:33:24,965 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)|))) [2018-11-22 22:33:24,965 INFO L448 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-22 22:33:24,965 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)) [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L451 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,966 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$.offset| .cse3) .cse4))) (<= (+ .cse1 .cse2) (+ (* 18446744073709551616 (div (+ .cse2 (+ .cse1 (- 1))) 18446744073709551616)) 18446744073709551615))))) (= pppox_create_~tmp~2 1))) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-22 22:33:24,966 INFO L448 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L444 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (<= |old(~ldv_module_refcounter~0)| 0)) [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L444 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (let ((.cse0 (+ |old(~ldv_module_refcounter~0)| 1))) (and (<= .cse0 ~ldv_module_refcounter~0) (<= ~ldv_module_refcounter~0 .cse0) (<= (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset|) (+ (* 18446744073709551616 (div (+ |pppox_create_#t~mem45.base| (+ |pppox_create_#t~mem45.offset| (- 1))) 18446744073709551616)) 18446744073709551615)) (let ((.cse5 (+ (* 8 pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse3 (select (select |#memory_$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$.offset| .cse3) .cse4))) (<= (+ .cse1 .cse2) (+ (* 18446744073709551616 (div (+ .cse2 (+ .cse1 (- 1))) 18446744073709551616)) 18446744073709551615))))) (= pppox_create_~tmp~2 1)))) [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L444 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (or (< 1 |old(~ldv_module_refcounter~0)|) (<= |old(~ldv_module_refcounter~0)| 0) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L444 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (or (let ((.cse2 (+ (* 8 pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$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)|))) [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-22 22:33:24,967 INFO L448 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L451 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L444 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (or (< 1 ~ldv_module_refcounter~0) (<= ~ldv_module_refcounter~0 0)) [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-22 22:33:24,968 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)|))) [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-22 22:33:24,968 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)) [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2018-11-22 22:33:24,968 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-22 22:33:24,968 INFO L444 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: (< |old(~ldv_module_refcounter~0)| 2) [2018-11-22 22:33:24,968 INFO L448 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-22 22:33:24,969 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)) [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L451 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L451 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L451 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-22 22:33:24,969 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-22 22:33:24,970 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)) [2018-11-22 22:33:24,970 INFO L448 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-22 22:33:24,970 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)) [2018-11-22 22:33:24,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:33:24 BoogieIcfgContainer [2018-11-22 22:33:24,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 22:33:24,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:33:24,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:33:24,980 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:33:24,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:33:22" (3/4) ... [2018-11-22 22:33:24,984 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 22:33:24,991 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 22:33:24,991 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get [2018-11-22 22:33:24,991 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_init [2018-11-22 22:33:24,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 22:33:24,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_create [2018-11-22 22:33:24,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-22 22:33:24,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get_1 [2018-11-22 22:33:24,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-11-22 22:33:24,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-22 22:33:24,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_exit [2018-11-22 22:33:24,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2018-11-22 22:33:24,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_2 [2018-11-22 22:33:24,999 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-11-22 22:33:24,999 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-22 22:33:24,999 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 22:33:25,021 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-22 22:33:25,021 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-22 22:33:25,022 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-22 22:33:25,022 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-22 22:33:25,022 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(ldv_module_refcounter) == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) [2018-11-22 22:33:25,022 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 [2018-11-22 22:33:25,053 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1d73523-b2f8-4d29-a445-11cf4d00c74e/bin-2019/utaipan/witness.graphml [2018-11-22 22:33:25,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:33:25,055 INFO L168 Benchmark]: Toolchain (without parser) took 4126.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.4 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 108.9 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,056 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:33:25,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 949.8 MB in the beginning and 1.2 GB in the end (delta: -201.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:33:25,057 INFO L168 Benchmark]: Boogie Preprocessor took 32.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,057 INFO L168 Benchmark]: RCFGBuilder took 447.09 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,057 INFO L168 Benchmark]: TraceAbstraction took 2816.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,058 INFO L168 Benchmark]: Witness Printer took 73.78 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-11-22 22:33:25,059 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 726.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 949.8 MB in the beginning and 1.2 GB in the end (delta: -201.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 447.09 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2816.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. * Witness Printer took 73.78 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 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, 2.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 480 SDtfs, 427 SDslu, 1815 SDs, 0 SdLazy, 465 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s 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: 0.0s 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, 0.8s 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...