./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/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_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/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 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/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_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/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 0.1.23-5842f4b [2018-11-18 15:31:23,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:31:23,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:31:23,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:31:23,563 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:31:23,564 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:31:23,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:31:23,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:31:23,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:31:23,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:31:23,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:31:23,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:31:23,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:31:23,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:31:23,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:31:23,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:31:23,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:31:23,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:31:23,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:31:23,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:31:23,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:31:23,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:31:23,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:31:23,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:31:23,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:31:23,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:31:23,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:31:23,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:31:23,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:31:23,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:31:23,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:31:23,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:31:23,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:31:23,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:31:23,587 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:31:23,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:31:23,588 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-18 15:31:23,599 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:31:23,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:31:23,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:31:23,600 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:31:23,601 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:31:23,601 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:31:23,601 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:31:23,601 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:31:23,601 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:31:23,601 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:31:23,602 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:31:23,602 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:31:23,602 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:31:23,602 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:31:23,603 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:31:23,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:31:23,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:31:23,604 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:31:23,605 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_a62e48cd-1827-4148-8df1-affb2a124df7/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 [2018-11-18 15:31:23,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:31:23,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:31:23,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:31:23,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:31:23,641 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:31:23,641 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 15:31:23,687 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/26e5e57c9/8e8ff1ae7a1a460b942a4ee4af235a26/FLAG3f7e25b33 [2018-11-18 15:31:24,142 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:31:24,142 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 15:31:24,159 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/26e5e57c9/8e8ff1ae7a1a460b942a4ee4af235a26/FLAG3f7e25b33 [2018-11-18 15:31:24,442 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/26e5e57c9/8e8ff1ae7a1a460b942a4ee4af235a26 [2018-11-18 15:31:24,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:31:24,445 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:31:24,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:31:24,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:31:24,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:31:24,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:31:24" (1/1) ... [2018-11-18 15:31:24,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552fa6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:24, skipping insertion in model container [2018-11-18 15:31:24,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:31:24" (1/1) ... [2018-11-18 15:31:24,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:31:24,508 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:31:25,080 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:31:25,100 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:31:25,407 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:31:25,432 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:31:25,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25 WrapperNode [2018-11-18 15:31:25,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:31:25,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:31:25,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:31:25,434 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:31:25,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... [2018-11-18 15:31:25,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:31:25,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:31:25,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:31:25,484 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:31:25,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:31:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:31:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:31:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2018-11-18 15:31:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-18 15:31:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-18 15:31:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2018-11-18 15:31:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2018-11-18 15:31:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 15:31:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:31:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:31:25,775 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:25,775 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 15:31:25,776 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:25,776 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:25,777 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:25,857 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:25,857 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 15:31:26,042 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:31:26,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:31:26 BoogieIcfgContainer [2018-11-18 15:31:26,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:31:26,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:31:26,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:31:26,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:31:26,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:31:24" (1/3) ... [2018-11-18 15:31:26,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e3b06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:31:26, skipping insertion in model container [2018-11-18 15:31:26,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:25" (2/3) ... [2018-11-18 15:31:26,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e3b06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:31:26, skipping insertion in model container [2018-11-18 15:31:26,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:31:26" (3/3) ... [2018-11-18 15:31:26,052 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 15:31:26,060 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:31:26,068 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:31:26,083 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:31:26,108 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:31:26,109 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:31:26,109 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:31:26,109 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:31:26,109 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:31:26,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:31:26,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:31:26,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:31:26,114 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:31:26,130 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-18 15:31:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:31:26,134 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:26,135 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:26,137 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:26,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:26,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1840608502, now seen corresponding path program 1 times [2018-11-18 15:31:26,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:31:26,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:31:26,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:26,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:26,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:26,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:31:26,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:31:26,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:31:26,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:31:26,329 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2018-11-18 15:31:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:26,382 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-18 15:31:26,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:31:26,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 15:31:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:26,392 INFO L225 Difference]: With dead ends: 191 [2018-11-18 15:31:26,392 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 15:31:26,395 INFO L604 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 [2018-11-18 15:31:26,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 15:31:26,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-18 15:31:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 15:31:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-18 15:31:26,433 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-18 15:31:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:26,433 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-18 15:31:26,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:31:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-18 15:31:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 15:31:26,436 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:26,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:26,436 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:26,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:26,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1732529517, now seen corresponding path program 1 times [2018-11-18 15:31:26,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:31:26,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:31:26,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:26,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:26,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:26,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:31:26,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:31:26,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:31:26,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:26,551 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-18 15:31:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:26,580 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-18 15:31:26,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:31:26,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-18 15:31:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:26,582 INFO L225 Difference]: With dead ends: 207 [2018-11-18 15:31:26,582 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 15:31:26,583 INFO L604 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 [2018-11-18 15:31:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 15:31:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-18 15:31:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 15:31:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-18 15:31:26,591 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-18 15:31:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:26,592 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-18 15:31:26,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:31:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-18 15:31:26,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 15:31:26,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:26,593 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:26,593 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:26,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:26,593 INFO L82 PathProgramCache]: Analyzing trace with hash 2144776014, now seen corresponding path program 1 times [2018-11-18 15:31:26,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:31:26,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:31:26,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:26,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:26,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:26,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:31:26,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:31:26,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:31:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:26,730 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 7 states. [2018-11-18 15:31:27,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:27,049 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2018-11-18 15:31:27,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:31:27,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-11-18 15:31:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:27,053 INFO L225 Difference]: With dead ends: 181 [2018-11-18 15:31:27,054 INFO L226 Difference]: Without dead ends: 178 [2018-11-18 15:31:27,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:31:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-11-18 15:31:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 164. [2018-11-18 15:31:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 15:31:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2018-11-18 15:31:27,072 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 49 [2018-11-18 15:31:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:27,073 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2018-11-18 15:31:27,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:31:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2018-11-18 15:31:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 15:31:27,075 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:27,075 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:27,075 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:27,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:27,076 INFO L82 PathProgramCache]: Analyzing trace with hash -461664162, now seen corresponding path program 1 times [2018-11-18 15:31:27,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:31:27,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:31:27,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:27,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:27,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:27,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:27,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:31:27,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:31:27,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:31:27,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:27,141 INFO L87 Difference]: Start difference. First operand 164 states and 198 transitions. Second operand 7 states. [2018-11-18 15:31:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:27,172 INFO L93 Difference]: Finished difference Result 291 states and 351 transitions. [2018-11-18 15:31:27,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:31:27,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-18 15:31:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:27,175 INFO L225 Difference]: With dead ends: 291 [2018-11-18 15:31:27,175 INFO L226 Difference]: Without dead ends: 167 [2018-11-18 15:31:27,176 INFO L604 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 [2018-11-18 15:31:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-18 15:31:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2018-11-18 15:31:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 15:31:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 196 transitions. [2018-11-18 15:31:27,192 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 196 transitions. Word has length 50 [2018-11-18 15:31:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:27,192 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 196 transitions. [2018-11-18 15:31:27,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:31:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2018-11-18 15:31:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 15:31:27,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:27,193 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:27,193 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:27,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:27,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1414353230, now seen corresponding path program 1 times [2018-11-18 15:31:27,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:31:27,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:31:27,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:27,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:27,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:31:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:27,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:27,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:27,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 15:31:27,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 15:31:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 15:31:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:31:27,490 INFO L87 Difference]: Start difference. First operand 164 states and 196 transitions. Second operand 12 states. [2018-11-18 15:31:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:27,580 INFO L93 Difference]: Finished difference Result 179 states and 219 transitions. [2018-11-18 15:31:27,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:31:27,580 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2018-11-18 15:31:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:27,581 INFO L225 Difference]: With dead ends: 179 [2018-11-18 15:31:27,581 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:31:27,582 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:31:27,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:31:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:31:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:31:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:31:27,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-18 15:31:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:27,583 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:31:27,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 15:31:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:31:27,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:31:27,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point pppox_unbind_sockEXIT(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point pppox_unbind_sockENTRY(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point L4775(lines 4775 4783) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point L4777(line 4777) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point L4777-1(line 4777) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point L4775-2(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountFINAL(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountENTRY(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountEXIT(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:27,772 INFO L425 ceAbstractionStarter]: For program point ldv_module_getEXIT(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L5021-2(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L5021(lines 5021 5025) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point ldv_module_getENTRY(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point lock_sockENTRY(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point lock_sockFINAL(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point lock_sockEXIT(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L4800-1(line 4800) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L4862(line 4862) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L4802-1(lines 4797 4877) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L4800(line 4800) no Hoare annotation was computed. [2018-11-18 15:31:27,773 INFO L425 ceAbstractionStarter]: For program point L4858(lines 4858 4867) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4862-1(line 4862) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4848(lines 4808 4868) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4811(lines 4811 4815) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4807(lines 4806 4871) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point $Ultimate##10(lines 4826 4846) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlEXIT(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point $Ultimate##4(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlENTRY(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4805(lines 4804 4871) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point $Ultimate##3(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point $Ultimate##9(lines 4826 4846) no Hoare annotation was computed. [2018-11-18 15:31:27,774 INFO L425 ceAbstractionStarter]: For program point L4822(lines 4822 4847) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlFINAL(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point L4808(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point L4802(line 4802) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L421 ceAbstractionStarter]: At program point L4959(line 4959) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-18 15:31:27,775 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 15:31:27,776 INFO L425 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-18 15:31:27,776 INFO L425 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-18 15:31:27,776 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 15:31:27,776 INFO L421 ceAbstractionStarter]: At program point L4972(lines 4971 4986) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,776 INFO L421 ceAbstractionStarter]: At program point L4999(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,776 INFO L421 ceAbstractionStarter]: At program point L4995(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,776 INFO L425 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 15:31:27,776 INFO L425 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L421 ceAbstractionStarter]: At program point L4993(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,777 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 4946 5007) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,777 INFO L421 ceAbstractionStarter]: At program point L4987(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L428 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 5029 5048) the Hoare annotation is: true [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 15:31:27,777 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point L4746(lines 4746 4750) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoEXIT(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoENTRY(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point L4738(lines 4738 4745) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoFINAL(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point L4741(lines 4741 4745) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L428 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 15:31:27,778 INFO L425 ceAbstractionStarter]: For program point pppox_skEXIT(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point pppox_skENTRY(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point pppox_skFINAL(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L421 ceAbstractionStarter]: At program point L4914(line 4914) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 15:31:27,779 INFO L425 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L421 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,780 INFO L425 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L425 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L421 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,780 INFO L425 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L421 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,780 INFO L425 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L425 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 15:31:27,780 INFO L421 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L428 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L421 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (not (= 1 ~ldv_module_refcounter~0)) [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L428 ceAbstractionStarter]: At program point L5105(line 5105) the Hoare annotation is: true [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 15:31:27,781 INFO L428 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5100 5109) the Hoare annotation is: true [2018-11-18 15:31:27,781 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (and (= ((as const (Array Int Int)) 0) .cse0) (= 1 ~ldv_module_refcounter~0) (= .cse0 (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|)))) [2018-11-18 15:31:27,782 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L428 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: true [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L428 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5049 5067) the Hoare annotation is: true [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,782 INFO L428 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitEXIT(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point L5073(lines 5071 5077) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitENTRY(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitFINAL(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point unregister_pppox_protoEXIT(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point unregister_pppox_protoENTRY(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point L4759(lines 4759 4767) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point L4759-1(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point L4760(lines 4760 4764) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L425 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 15:31:27,783 INFO L428 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L428 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L428 ceAbstractionStarter]: At program point L5115(line 5115) the Hoare annotation is: true [2018-11-18 15:31:27,784 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 15:31:27,784 INFO L428 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5110 5119) the Hoare annotation is: true [2018-11-18 15:31:27,788 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 15:31:27,791 INFO L168 Benchmark]: Toolchain (without parser) took 3346.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 250.1 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:27,792 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:31:27,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -109.1 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:27,793 INFO L168 Benchmark]: Boogie Preprocessor took 50.49 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: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:27,794 INFO L168 Benchmark]: RCFGBuilder took 558.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:27,794 INFO L168 Benchmark]: TraceAbstraction took 1747.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -119.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:31:27,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 987.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -109.1 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.49 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: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 558.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1747.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -119.9 MB). There was no memory consumed. 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:31:29,286 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:31:29,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:31:29,295 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:31:29,296 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:31:29,296 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:31:29,297 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:31:29,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:31:29,299 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:31:29,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:31:29,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:31:29,301 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:31:29,301 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:31:29,302 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:31:29,303 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:31:29,304 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:31:29,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:31:29,306 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:31:29,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:31:29,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:31:29,309 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:31:29,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:31:29,311 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:31:29,312 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:31:29,312 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:31:29,312 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:31:29,313 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:31:29,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:31:29,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:31:29,315 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:31:29,315 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:31:29,315 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:31:29,316 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:31:29,316 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:31:29,316 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:31:29,317 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:31:29,318 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2018-11-18 15:31:29,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:31:29,328 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:31:29,328 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:31:29,328 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:31:29,329 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:31:29,329 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:31:29,329 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:31:29,329 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:31:29,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:31:29,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:31:29,330 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:31:29,330 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:31:29,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:31:29,331 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:31:29,332 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:31:29,332 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 15:31:29,333 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:31:29,333 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:31:29,333 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:31:29,333 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:31:29,333 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_a62e48cd-1827-4148-8df1-affb2a124df7/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 [2018-11-18 15:31:29,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:31:29,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:31:29,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:31:29,378 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:31:29,378 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:31:29,379 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/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 [2018-11-18 15:31:29,423 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/fb591d142/583dc30e3aa84f0b9f6814406973c4c5/FLAG0b7e07215 [2018-11-18 15:31:29,870 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:31:29,871 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 15:31:29,888 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/fb591d142/583dc30e3aa84f0b9f6814406973c4c5/FLAG0b7e07215 [2018-11-18 15:31:30,179 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/data/fb591d142/583dc30e3aa84f0b9f6814406973c4c5 [2018-11-18 15:31:30,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:31:30,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:31:30,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:31:30,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:31:30,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:31:30,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:31:30" (1/1) ... [2018-11-18 15:31:30,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24867603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:30, skipping insertion in model container [2018-11-18 15:31:30,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:31:30" (1/1) ... [2018-11-18 15:31:30,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:31:30,252 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:31:30,850 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:31:30,871 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:31:31,176 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:31:31,204 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:31:31,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31 WrapperNode [2018-11-18 15:31:31,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:31:31,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:31:31,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:31:31,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:31:31,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... [2018-11-18 15:31:31,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:31:31,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:31:31,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:31:31,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:31:31,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2018-11-18 15:31:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-18 15:31:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-18 15:31:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-18 15:31:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:31:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-18 15:31:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2018-11-18 15:31:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 15:31:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:31:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:31:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:31:31,516 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:31,516 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 15:31:31,517 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:31,517 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:31,517 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:31,619 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 15:31:31,619 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 15:31:31,827 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:31:31,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:31:31 BoogieIcfgContainer [2018-11-18 15:31:31,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:31:31,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:31:31,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:31:31,831 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:31:31,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:31:30" (1/3) ... [2018-11-18 15:31:31,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d377c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:31:31, skipping insertion in model container [2018-11-18 15:31:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:31:31" (2/3) ... [2018-11-18 15:31:31,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d377c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:31:31, skipping insertion in model container [2018-11-18 15:31:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:31:31" (3/3) ... [2018-11-18 15:31:31,834 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 15:31:31,843 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:31:31,850 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:31:31,862 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:31:31,886 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:31:31,887 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:31:31,887 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:31:31,887 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:31:31,887 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:31:31,887 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:31:31,887 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:31:31,887 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:31:31,887 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:31:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-18 15:31:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:31:31,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:31,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:31,903 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:31,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:31,906 INFO L82 PathProgramCache]: Analyzing trace with hash 579658760, now seen corresponding path program 1 times [2018-11-18 15:31:31,909 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:31,909 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:31,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:31,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:32,015 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:32,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:32,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:31:32,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:31:32,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:31:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:31:32,035 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2018-11-18 15:31:32,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:32,074 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-18 15:31:32,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:31:32,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 15:31:32,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:32,083 INFO L225 Difference]: With dead ends: 191 [2018-11-18 15:31:32,083 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 15:31:32,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:31:32,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 15:31:32,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-18 15:31:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 15:31:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-18 15:31:32,122 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-18 15:31:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:32,123 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-18 15:31:32,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:31:32,123 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-18 15:31:32,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 15:31:32,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:32,125 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:32,125 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:32,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:32,126 INFO L82 PathProgramCache]: Analyzing trace with hash 3242065, now seen corresponding path program 1 times [2018-11-18 15:31:32,126 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:32,126 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:32,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:32,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:32,240 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:32,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:32,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:31:32,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:31:32,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:31:32,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:32,244 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-18 15:31:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:32,305 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-18 15:31:32,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:31:32,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-18 15:31:32,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:32,308 INFO L225 Difference]: With dead ends: 207 [2018-11-18 15:31:32,308 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 15:31:32,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 15:31:32,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-18 15:31:32,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 15:31:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-18 15:31:32,322 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-18 15:31:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:32,322 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-18 15:31:32,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:31:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-18 15:31:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 15:31:32,323 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:32,324 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:32,324 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:32,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash 2036984460, now seen corresponding path program 1 times [2018-11-18 15:31:32,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:32,325 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:32,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:32,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:32,496 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:32,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:32,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:31:32,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:31:32,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:31:32,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:31:32,509 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 6 states. [2018-11-18 15:31:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:32,897 INFO L93 Difference]: Finished difference Result 220 states and 262 transitions. [2018-11-18 15:31:32,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:31:32,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-11-18 15:31:32,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:32,901 INFO L225 Difference]: With dead ends: 220 [2018-11-18 15:31:32,901 INFO L226 Difference]: Without dead ends: 210 [2018-11-18 15:31:32,901 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:31:32,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-11-18 15:31:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 134. [2018-11-18 15:31:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 15:31:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2018-11-18 15:31:32,918 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 49 [2018-11-18 15:31:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:32,919 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2018-11-18 15:31:32,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:31:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2018-11-18 15:31:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 15:31:32,920 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:32,920 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:32,921 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:32,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:32,921 INFO L82 PathProgramCache]: Analyzing trace with hash 989893148, now seen corresponding path program 1 times [2018-11-18 15:31:32,921 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:32,923 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:32,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:32,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:33,036 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:33,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:33,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:31:33,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:31:33,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:31:33,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:33,038 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 7 states. [2018-11-18 15:31:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:33,090 INFO L93 Difference]: Finished difference Result 205 states and 235 transitions. [2018-11-18 15:31:33,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:31:33,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-18 15:31:33,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:33,092 INFO L225 Difference]: With dead ends: 205 [2018-11-18 15:31:33,092 INFO L226 Difference]: Without dead ends: 140 [2018-11-18 15:31:33,093 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:31:33,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-18 15:31:33,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2018-11-18 15:31:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 15:31:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 151 transitions. [2018-11-18 15:31:33,106 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 151 transitions. Word has length 50 [2018-11-18 15:31:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:33,106 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 151 transitions. [2018-11-18 15:31:33,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:31:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 151 transitions. [2018-11-18 15:31:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 15:31:33,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:33,108 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:33,108 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:33,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:33,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1615928788, now seen corresponding path program 1 times [2018-11-18 15:31:33,109 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:33,109 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:33,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:33,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:33,398 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:33,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:33,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:31:33,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:31:33,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:31:33,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:31:33,402 INFO L87 Difference]: Start difference. First operand 134 states and 151 transitions. Second operand 5 states. [2018-11-18 15:31:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:33,601 INFO L93 Difference]: Finished difference Result 266 states and 305 transitions. [2018-11-18 15:31:33,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:31:33,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-18 15:31:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:33,603 INFO L225 Difference]: With dead ends: 266 [2018-11-18 15:31:33,603 INFO L226 Difference]: Without dead ends: 144 [2018-11-18 15:31:33,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:31:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-18 15:31:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2018-11-18 15:31:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 15:31:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2018-11-18 15:31:33,612 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 65 [2018-11-18 15:31:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:33,612 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2018-11-18 15:31:33,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:31:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2018-11-18 15:31:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 15:31:33,613 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:31:33,614 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:31:33,614 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:31:33,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:31:33,614 INFO L82 PathProgramCache]: Analyzing trace with hash -722442450, now seen corresponding path program 1 times [2018-11-18 15:31:33,614 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:31:33,615 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:31:33,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:31:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:31:33,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:31:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:31:34,687 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:31:34,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:31:34,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-18 15:31:34,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 15:31:34,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 15:31:34,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:31:34,690 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 14 states. [2018-11-18 15:31:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:31:37,054 INFO L93 Difference]: Finished difference Result 188 states and 214 transitions. [2018-11-18 15:31:37,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 15:31:37,056 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-11-18 15:31:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:31:37,056 INFO L225 Difference]: With dead ends: 188 [2018-11-18 15:31:37,056 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:31:37,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-11-18 15:31:37,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:31:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:31:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:31:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:31:37,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-18 15:31:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:31:37,057 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:31:37,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 15:31:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:31:37,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:31:37,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:31:37,358 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2018-11-18 15:31:37,484 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2018-11-18 15:31:37,715 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point pppox_unbind_sockEXIT(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point pppox_unbind_sockENTRY(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L4775(lines 4775 4783) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L4777(line 4777) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L4777-1(line 4777) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L4775-2(lines 4771 4786) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountFINAL(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountENTRY(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point ldv_module_refcountEXIT(lines 5079 5085) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point ldv_module_getEXIT(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L5021-2(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point L5021(lines 5021 5025) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point ldv_module_getENTRY(lines 5017 5028) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point lock_sockENTRY(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point lock_sockFINAL(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:38,089 INFO L425 ceAbstractionStarter]: For program point lock_sockEXIT(lines 4711 4720) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4800-1(line 4800) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4862(line 4862) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4802-1(lines 4797 4877) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4800(line 4800) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4858(lines 4858 4867) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4862-1(line 4862) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4848(lines 4808 4868) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4811(lines 4811 4815) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point L4807(lines 4806 4871) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point $Ultimate##10(lines 4826 4846) no Hoare annotation was computed. [2018-11-18 15:31:38,090 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlEXIT(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point $Ultimate##4(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlENTRY(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point L4805(lines 4804 4871) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point $Ultimate##3(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point $Ultimate##9(lines 4826 4846) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point L4822(lines 4822 4847) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point pppox_ioctlFINAL(lines 4787 4878) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point L4808(lines 4808 4870) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point L4802(line 4802) no Hoare annotation was computed. [2018-11-18 15:31:38,091 INFO L421 ceAbstractionStarter]: At program point L4959(line 4959) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,091 INFO L425 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point L4972(lines 4971 4986) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point L4999(lines 4955 5006) the Hoare annotation is: (or (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point L4995(lines 4955 5006) the Hoare annotation is: (or (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point L4993(lines 4955 5006) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 4946 5007) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point L4987(lines 4955 5006) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,092 INFO L425 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-18 15:31:38,092 INFO L421 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 5029 5048) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point L4746(lines 4746 4750) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoEXIT(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoENTRY(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point L4738(lines 4738 4745) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point register_pppox_protoFINAL(lines 4734 4754) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point L4741(lines 4741 4745) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 15:31:38,093 INFO L428 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-18 15:31:38,093 INFO L425 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point pppox_skEXIT(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point pppox_skENTRY(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point pppox_skFINAL(lines 4722 4728) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L421 ceAbstractionStarter]: At program point L4914(line 4914) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (= (bvadd pppox_create_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))))))) [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 15:31:38,094 INFO L425 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 15:31:38,095 INFO L421 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,095 INFO L425 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 15:31:38,095 INFO L425 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-18 15:31:38,095 INFO L421 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (or (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (= (bvadd pppox_create_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (exists ((pppox_create_~protocol (_ BitVec 32))) (let ((.cse4 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) (_ bv16 32)))) (let ((.cse0 (select (select |#memory_$Pointer$.offset| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.base| .cse2) .cse3))) (and (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (bvadd .cse0 .cse1)))) (= |pppox_create_#t~mem45.offset| .cse0) (= |pppox_create_#t~mem45.base| .cse1)))))) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse7 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse5 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse7)) (.cse6 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse7) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse5) .cse6) (select (select |#memory_$Pointer$.base| .cse5) .cse6)))))))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 15:31:38,095 INFO L425 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-18 15:31:38,095 INFO L421 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,095 INFO L425 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-18 15:31:38,095 INFO L425 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L421 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (or (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= |pppox_create_#t~mem35.base| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) |pppox_create_#t~mem35.offset|)))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L428 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L421 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (not (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INTENTRY(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INTEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INTFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,096 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L421 ceAbstractionStarter]: At program point L5105(line 5105) the Hoare annotation is: (or (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ldv_try_module_get_1_~module.base |ldv_try_module_get_1_#in~module.base|) (= |ldv_try_module_get_1_#in~module.offset| ldv_try_module_get_1_~module.offset)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L421 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5100 5109) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (_ bv1 32) ~ldv_module_refcounter~0) [2018-11-18 15:31:38,097 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L421 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32))))) [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 15:31:38,097 INFO L425 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L421 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5049 5067) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitEXIT(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point L5073(lines 5071 5077) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitENTRY(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_and_exitFINAL(lines 5068 5078) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point unregister_pppox_protoEXIT(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point unregister_pppox_protoENTRY(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point L4759(lines 4759 4767) no Hoare annotation was computed. [2018-11-18 15:31:38,098 INFO L425 ceAbstractionStarter]: For program point L4759-1(lines 4755 4770) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point L4760(lines 4760 4764) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L428 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L428 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:31:38,099 INFO L428 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 15:31:38,099 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 15:31:38,100 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 15:31:38,100 INFO L421 ceAbstractionStarter]: At program point L5115(line 5115) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (and (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (= |ldv_module_put_2_#in~ldv_func_arg1.offset| ldv_module_put_2_~ldv_func_arg1.offset) (= ldv_module_put_2_~ldv_func_arg1.base |ldv_module_put_2_#in~ldv_func_arg1.base|))) [2018-11-18 15:31:38,100 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 15:31:38,100 INFO L421 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5110 5119) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-18 15:31:38,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:31:38 BoogieIcfgContainer [2018-11-18 15:31:38,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:31:38,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:31:38,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:31:38,110 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:31:38,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:31:31" (3/4) ... [2018-11-18 15:31:38,113 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_unbind_sock [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_refcount [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_get [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_sock [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_ioctl [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get [2018-11-18 15:31:38,119 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure register_pppox_proto [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_init [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_sk [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_create [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get_1 [2018-11-18 15:31:38,120 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure unregister_pppox_proto [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_and_exit [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_exit [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2018-11-18 15:31:38,121 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_2 [2018-11-18 15:31:38,126 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 15:31:38,126 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 15:31:38,127 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 15:31:38,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 15:31:38,182 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a62e48cd-1827-4148-8df1-affb2a124df7/bin-2019/uautomizer/witness.graphml [2018-11-18 15:31:38,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:31:38,183 INFO L168 Benchmark]: Toolchain (without parser) took 8001.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 941.1 MB in the beginning and 909.2 MB in the end (delta: 31.9 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,184 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:31:38,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1021.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.1 MB in the beginning and 1.0 GB in the end (delta: -79.9 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,184 INFO L168 Benchmark]: Boogie Preprocessor took 52.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,185 INFO L168 Benchmark]: RCFGBuilder took 570.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 963.7 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,185 INFO L168 Benchmark]: TraceAbstraction took 6280.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 963.7 MB in the beginning and 916.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,185 INFO L168 Benchmark]: Witness Printer took 72.95 ms. Allocated memory is still 1.3 GB. Free memory was 916.5 MB in the beginning and 909.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:31:38,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1021.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.1 MB in the beginning and 1.0 GB in the end (delta: -79.9 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 570.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 963.7 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6280.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 963.7 MB in the beginning and 916.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. * Witness Printer took 72.95 ms. Allocated memory is still 1.3 GB. Free memory was 916.5 MB in the beginning and 909.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 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: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4883]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4971]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 135 locations, 1 error locations. SAFE Result, 6.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 532 SDtfs, 339 SDslu, 1891 SDs, 0 SdLazy, 609 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=5, 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, 97 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 156 PreInvPairs, 176 NumberOfFragments, 662 HoareAnnotationTreeSize, 156 FomulaSimplifications, 630 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 1664 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 13 QuantifiedInterpolants, 93941 SizeOfPredicates, 28 NumberOfNonLiveVariables, 912 ConjunctsInSsa, 66 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...