/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 23:16:47,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 23:16:47,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 23:16:47,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 23:16:47,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 23:16:47,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 23:16:47,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 23:16:47,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 23:16:47,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 23:16:47,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 23:16:47,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 23:16:47,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 23:16:47,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 23:16:47,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 23:16:47,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 23:16:47,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 23:16:47,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 23:16:47,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 23:16:47,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 23:16:47,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 23:16:47,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 23:16:47,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 23:16:47,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 23:16:47,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 23:16:47,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 23:16:47,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 23:16:47,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 23:16:47,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 23:16:47,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 23:16:47,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 23:16:47,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 23:16:47,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 23:16:47,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 23:16:47,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 23:16:47,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 23:16:47,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 23:16:47,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 23:16:47,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 23:16:47,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 23:16:47,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 23:16:47,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 23:16:47,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 23:16:47,913 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 23:16:47,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 23:16:47,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 23:16:47,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 23:16:47,915 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 23:16:47,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 23:16:47,916 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 23:16:47,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 23:16:47,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 23:16:47,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 23:16:47,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 23:16:47,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 23:16:47,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 23:16:47,917 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 23:16:47,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 23:16:47,918 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 23:16:47,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 23:16:47,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 23:16:47,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 23:16:47,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 23:16:47,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 23:16:47,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 23:16:47,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 23:16:47,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 23:16:47,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 23:16:47,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 23:16:47,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 23:16:47,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 23:16:47,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 23:16:48,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 23:16:48,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 23:16:48,213 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 23:16:48,214 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 23:16:48,215 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 23:16:48,215 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-11-06 23:16:48,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a6db75e/bff8d8f3b791415eb4f23c5350684108/FLAGeab51fe57 [2019-11-06 23:16:49,058 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 23:16:49,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-11-06 23:16:49,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a6db75e/bff8d8f3b791415eb4f23c5350684108/FLAGeab51fe57 [2019-11-06 23:16:49,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a6db75e/bff8d8f3b791415eb4f23c5350684108 [2019-11-06 23:16:49,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 23:16:49,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 23:16:49,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 23:16:49,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 23:16:49,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 23:16:49,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:16:49" (1/1) ... [2019-11-06 23:16:49,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778299e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:49, skipping insertion in model container [2019-11-06 23:16:49,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:16:49" (1/1) ... [2019-11-06 23:16:49,174 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 23:16:49,280 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 23:16:50,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:16:50,155 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 23:16:50,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:16:50,355 INFO L192 MainTranslator]: Completed translation [2019-11-06 23:16:50,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50 WrapperNode [2019-11-06 23:16:50,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 23:16:50,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 23:16:50,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 23:16:50,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 23:16:50,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... [2019-11-06 23:16:50,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 23:16:50,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 23:16:50,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 23:16:50,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 23:16:50,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-06 23:16:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 23:16:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 23:16:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-11-06 23:16:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-06 23:16:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-11-06 23:16:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-11-06 23:16:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-11-06 23:16:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-11-06 23:16:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-11-06 23:16:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-11-06 23:16:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-11-06 23:16:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-11-06 23:16:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-11-06 23:16:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 23:16:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-11-06 23:16:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-11-06 23:16:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-11-06 23:16:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-11-06 23:16:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-11-06 23:16:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-11-06 23:16:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-11-06 23:16:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-11-06 23:16:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 23:16:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 23:16:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-11-06 23:16:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-11-06 23:16:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-11-06 23:16:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-11-06 23:16:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-11-06 23:16:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-11-06 23:16:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 23:16:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 23:16:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-11-06 23:16:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-11-06 23:16:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 23:16:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 23:16:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 23:16:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-11-06 23:16:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-11-06 23:16:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 23:16:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 23:16:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 23:16:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 23:16:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 23:16:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 23:16:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 23:16:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 23:16:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 23:16:51,036 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:16:51,162 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-11-06 23:16:51,162 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-11-06 23:16:51,163 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-06 23:16:51,163 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-06 23:16:51,164 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:16:51,191 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-11-06 23:16:51,191 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-11-06 23:16:51,312 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-11-06 23:16:51,433 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 23:16:51,434 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 23:16:51,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:16:51 BoogieIcfgContainer [2019-11-06 23:16:51,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 23:16:51,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 23:16:51,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 23:16:51,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 23:16:51,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:16:49" (1/3) ... [2019-11-06 23:16:51,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a89dd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:16:51, skipping insertion in model container [2019-11-06 23:16:51,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:16:50" (2/3) ... [2019-11-06 23:16:51,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a89dd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:16:51, skipping insertion in model container [2019-11-06 23:16:51,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:16:51" (3/3) ... [2019-11-06 23:16:51,443 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2019-11-06 23:16:51,453 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 23:16:51,463 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 23:16:51,473 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 23:16:51,493 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 23:16:51,493 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 23:16:51,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 23:16:51,494 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 23:16:51,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 23:16:51,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 23:16:51,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 23:16:51,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 23:16:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-11-06 23:16:51,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-06 23:16:51,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:51,521 INFO L410 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] [2019-11-06 23:16:51,524 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:51,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1181566854, now seen corresponding path program 1 times [2019-11-06 23:16:51,540 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:51,540 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444847390] [2019-11-06 23:16:51,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:51,831 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444847390] [2019-11-06 23:16:51,832 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:51,832 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:16:51,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686072384] [2019-11-06 23:16:51,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:16:51,839 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:51,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:16:51,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:16:51,857 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2019-11-06 23:16:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:51,929 INFO L93 Difference]: Finished difference Result 223 states and 274 transitions. [2019-11-06 23:16:51,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:16:51,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-06 23:16:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:51,945 INFO L225 Difference]: With dead ends: 223 [2019-11-06 23:16:51,945 INFO L226 Difference]: Without dead ends: 135 [2019-11-06 23:16:51,951 INFO L630 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 [2019-11-06 23:16:51,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-06 23:16:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2019-11-06 23:16:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-06 23:16:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-11-06 23:16:52,013 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 24 [2019-11-06 23:16:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:52,014 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-11-06 23:16:52,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:16:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-11-06 23:16:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-06 23:16:52,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:52,018 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:52,018 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:52,018 INFO L82 PathProgramCache]: Analyzing trace with hash -434919225, now seen corresponding path program 1 times [2019-11-06 23:16:52,019 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:52,019 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415073160] [2019-11-06 23:16:52,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:52,217 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415073160] [2019-11-06 23:16:52,217 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:52,218 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 23:16:52,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346542013] [2019-11-06 23:16:52,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 23:16:52,222 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:52,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 23:16:52,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:16:52,225 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 7 states. [2019-11-06 23:16:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:52,367 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2019-11-06 23:16:52,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 23:16:52,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-06 23:16:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:52,373 INFO L225 Difference]: With dead ends: 241 [2019-11-06 23:16:52,373 INFO L226 Difference]: Without dead ends: 129 [2019-11-06 23:16:52,375 INFO L630 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 [2019-11-06 23:16:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-06 23:16:52,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2019-11-06 23:16:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-06 23:16:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-11-06 23:16:52,393 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 56 [2019-11-06 23:16:52,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:52,394 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-11-06 23:16:52,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 23:16:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-11-06 23:16:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-06 23:16:52,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:52,396 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:52,396 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:52,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:52,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1834921373, now seen corresponding path program 1 times [2019-11-06 23:16:52,397 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:52,397 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278231772] [2019-11-06 23:16:52,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:52,623 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278231772] [2019-11-06 23:16:52,623 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:52,623 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 23:16:52,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640122971] [2019-11-06 23:16:52,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 23:16:52,624 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:52,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 23:16:52,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:16:52,625 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 7 states. [2019-11-06 23:16:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:53,167 INFO L93 Difference]: Finished difference Result 210 states and 242 transitions. [2019-11-06 23:16:53,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 23:16:53,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2019-11-06 23:16:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:53,172 INFO L225 Difference]: With dead ends: 210 [2019-11-06 23:16:53,172 INFO L226 Difference]: Without dead ends: 207 [2019-11-06 23:16:53,173 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-06 23:16:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2019-11-06 23:16:53,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2019-11-06 23:16:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-06 23:16:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2019-11-06 23:16:53,199 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 62 [2019-11-06 23:16:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:53,199 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2019-11-06 23:16:53,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 23:16:53,200 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2019-11-06 23:16:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-06 23:16:53,205 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:53,205 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:53,206 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1289390946, now seen corresponding path program 1 times [2019-11-06 23:16:53,206 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:53,206 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484260547] [2019-11-06 23:16:53,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:53,369 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484260547] [2019-11-06 23:16:53,370 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:53,370 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 23:16:53,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064946380] [2019-11-06 23:16:53,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 23:16:53,373 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:53,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 23:16:53,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:16:53,374 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 7 states. [2019-11-06 23:16:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:53,432 INFO L93 Difference]: Finished difference Result 330 states and 390 transitions. [2019-11-06 23:16:53,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 23:16:53,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-11-06 23:16:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:53,439 INFO L225 Difference]: With dead ends: 330 [2019-11-06 23:16:53,440 INFO L226 Difference]: Without dead ends: 193 [2019-11-06 23:16:53,442 INFO L630 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 [2019-11-06 23:16:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-06 23:16:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2019-11-06 23:16:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-06 23:16:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2019-11-06 23:16:53,480 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 66 [2019-11-06 23:16:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:53,481 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2019-11-06 23:16:53,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 23:16:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2019-11-06 23:16:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-06 23:16:53,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:53,484 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:53,484 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:53,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:53,484 INFO L82 PathProgramCache]: Analyzing trace with hash -566743229, now seen corresponding path program 1 times [2019-11-06 23:16:53,485 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:53,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343980563] [2019-11-06 23:16:53,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:53,663 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343980563] [2019-11-06 23:16:53,664 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:53,664 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 23:16:53,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348587020] [2019-11-06 23:16:53,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 23:16:53,667 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:53,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 23:16:53,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:16:53,668 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 5 states. [2019-11-06 23:16:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:53,761 INFO L93 Difference]: Finished difference Result 375 states and 450 transitions. [2019-11-06 23:16:53,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 23:16:53,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2019-11-06 23:16:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:53,767 INFO L225 Difference]: With dead ends: 375 [2019-11-06 23:16:53,767 INFO L226 Difference]: Without dead ends: 205 [2019-11-06 23:16:53,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:16:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-11-06 23:16:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 196. [2019-11-06 23:16:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-06 23:16:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 228 transitions. [2019-11-06 23:16:53,801 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 228 transitions. Word has length 81 [2019-11-06 23:16:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:53,801 INFO L462 AbstractCegarLoop]: Abstraction has 196 states and 228 transitions. [2019-11-06 23:16:53,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 23:16:53,801 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 228 transitions. [2019-11-06 23:16:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-06 23:16:53,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:53,809 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:53,809 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:53,809 INFO L82 PathProgramCache]: Analyzing trace with hash -122842555, now seen corresponding path program 1 times [2019-11-06 23:16:53,810 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:53,810 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999405361] [2019-11-06 23:16:53,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:16:54,330 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999405361] [2019-11-06 23:16:54,331 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:54,331 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-06 23:16:54,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543303074] [2019-11-06 23:16:54,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-06 23:16:54,333 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:54,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-06 23:16:54,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-11-06 23:16:54,333 INFO L87 Difference]: Start difference. First operand 196 states and 228 transitions. Second operand 14 states. [2019-11-06 23:16:54,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:54,840 INFO L93 Difference]: Finished difference Result 317 states and 360 transitions. [2019-11-06 23:16:54,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 23:16:54,844 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2019-11-06 23:16:54,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:54,845 INFO L225 Difference]: With dead ends: 317 [2019-11-06 23:16:54,845 INFO L226 Difference]: Without dead ends: 168 [2019-11-06 23:16:54,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-11-06 23:16:54,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-06 23:16:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2019-11-06 23:16:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-06 23:16:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2019-11-06 23:16:54,859 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 81 [2019-11-06 23:16:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:54,859 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2019-11-06 23:16:54,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-06 23:16:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2019-11-06 23:16:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 23:16:54,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:54,861 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:54,861 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:54,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash 2001053501, now seen corresponding path program 1 times [2019-11-06 23:16:54,862 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:54,862 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538908720] [2019-11-06 23:16:54,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-06 23:16:55,056 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538908720] [2019-11-06 23:16:55,056 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:55,057 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 23:16:55,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514508452] [2019-11-06 23:16:55,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 23:16:55,057 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:55,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 23:16:55,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-06 23:16:55,058 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 9 states. [2019-11-06 23:16:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:55,275 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2019-11-06 23:16:55,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 23:16:55,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-11-06 23:16:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:55,277 INFO L225 Difference]: With dead ends: 150 [2019-11-06 23:16:55,278 INFO L226 Difference]: Without dead ends: 138 [2019-11-06 23:16:55,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-11-06 23:16:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-11-06 23:16:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-11-06 23:16:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-06 23:16:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2019-11-06 23:16:55,288 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 83 [2019-11-06 23:16:55,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:55,289 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2019-11-06 23:16:55,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 23:16:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2019-11-06 23:16:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 23:16:55,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:16:55,290 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:16:55,291 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:16:55,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:16:55,291 INFO L82 PathProgramCache]: Analyzing trace with hash -165996833, now seen corresponding path program 1 times [2019-11-06 23:16:55,291 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:16:55,291 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85168426] [2019-11-06 23:16:55,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:16:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:16:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 23:16:55,434 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85168426] [2019-11-06 23:16:55,434 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:16:55,434 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 23:16:55,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440927843] [2019-11-06 23:16:55,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 23:16:55,436 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:16:55,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 23:16:55,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:16:55,441 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 6 states. [2019-11-06 23:16:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:16:55,593 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2019-11-06 23:16:55,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 23:16:55,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-11-06 23:16:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:16:55,595 INFO L225 Difference]: With dead ends: 138 [2019-11-06 23:16:55,595 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 23:16:55,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-06 23:16:55,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 23:16:55,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 23:16:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 23:16:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 23:16:55,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2019-11-06 23:16:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:16:55,597 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 23:16:55,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 23:16:55,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 23:16:55,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 23:16:55,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 23:16:56,102 INFO L443 ceAbstractionStarter]: For program point L4992-2(lines 4989 4998) no Hoare annotation was computed. [2019-11-06 23:16:56,102 INFO L443 ceAbstractionStarter]: For program point L4992(lines 4992 4995) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point ldv_module_getEXIT(lines 4989 4998) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point ldv_module_getENTRY(lines 4989 4998) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point kfreeEXIT(lines 5118 5120) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point kfreeENTRY(lines 5118 5120) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point kfreeFINAL(lines 5118 5120) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point might_faultFINAL(lines 5093 5095) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point might_faultEXIT(lines 5093 5095) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point lock_sockENTRY(lines 4708 4716) no Hoare annotation was computed. [2019-11-06 23:16:56,103 INFO L443 ceAbstractionStarter]: For program point lock_sockFINAL(lines 4708 4716) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4712(line 4712) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point lock_sockEXIT(lines 4708 4716) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4788-1(lines 4783 4859) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4788(line 4788) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4797(lines 4797 4800) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4793(lines 4792 4853) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point pppox_ioctlFINAL(lines 4774 4860) no Hoare annotation was computed. [2019-11-06 23:16:56,104 INFO L443 ceAbstractionStarter]: For program point L4794(lines 4794 4852) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4856(line 4856) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4786(line 4786) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4786-1(line 4786) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4807(lines 4807 4831) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point pppox_ioctlEXIT(lines 4774 4860) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4803(line 4803) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point L4803-1(line 4803) no Hoare annotation was computed. [2019-11-06 23:16:56,105 INFO L443 ceAbstractionStarter]: For program point pppox_ioctlENTRY(lines 4774 4860) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4832(lines 4794 4851) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4791(lines 4790 4853) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4845(line 4845) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4845-1(line 4845) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4841(lines 4841 4850) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4804-1(line 4804) no Hoare annotation was computed. [2019-11-06 23:16:56,106 INFO L443 ceAbstractionStarter]: For program point L4804(line 4804) no Hoare annotation was computed. [2019-11-06 23:16:56,107 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4922 4980) no Hoare annotation was computed. [2019-11-06 23:16:56,107 INFO L443 ceAbstractionStarter]: For program point L4945(lines 4945 4959) no Hoare annotation was computed. [2019-11-06 23:16:56,107 INFO L443 ceAbstractionStarter]: For program point L4976(line 4976) no Hoare annotation was computed. [2019-11-06 23:16:56,107 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4922 4980) no Hoare annotation was computed. [2019-11-06 23:16:56,107 INFO L439 ceAbstractionStarter]: At program point L4972(lines 4930 4979) the Hoare annotation is: (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,108 INFO L439 ceAbstractionStarter]: At program point L4966(lines 4930 4979) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,108 INFO L439 ceAbstractionStarter]: At program point L4968(lines 4930 4979) the Hoare annotation is: (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,108 INFO L439 ceAbstractionStarter]: At program point L4933(line 4933) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,108 INFO L439 ceAbstractionStarter]: At program point L4933-1(line 4933) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,108 INFO L439 ceAbstractionStarter]: At program point L4960(lines 4930 4979) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,109 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 4922 4980) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,109 INFO L443 ceAbstractionStarter]: For program point L4952(line 4952) no Hoare annotation was computed. [2019-11-06 23:16:56,109 INFO L439 ceAbstractionStarter]: At program point L4946(lines 4945 4959) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,109 INFO L443 ceAbstractionStarter]: For program point L4934(line 4934) no Hoare annotation was computed. [2019-11-06 23:16:56,109 INFO L443 ceAbstractionStarter]: For program point L4936(lines 4936 4939) no Hoare annotation was computed. [2019-11-06 23:16:56,109 INFO L443 ceAbstractionStarter]: For program point L4965(lines 4965 4969) no Hoare annotation was computed. [2019-11-06 23:16:56,110 INFO L443 ceAbstractionStarter]: For program point L5006(lines 5006 5011) no Hoare annotation was computed. [2019-11-06 23:16:56,110 INFO L439 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 4999 5016) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,110 INFO L443 ceAbstractionStarter]: For program point L5004-1(line 5004) no Hoare annotation was computed. [2019-11-06 23:16:56,110 INFO L443 ceAbstractionStarter]: For program point L5002(lines 5002 5013) no Hoare annotation was computed. [2019-11-06 23:16:56,110 INFO L439 ceAbstractionStarter]: At program point L5004(line 5004) the Hoare annotation is: (or (and (= ldv_try_module_get_~module.base |ldv_try_module_get_#in~module.base|) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (<= (+ |ldv_try_module_get_#in~module.base| |ldv_try_module_get_#in~module.offset|) (+ (* 4294967296 (div (+ |ldv_try_module_get_#in~module.base| |ldv_try_module_get_#in~module.offset| (- 1)) 4294967296)) 4294967295)) (= ldv_try_module_get_~module.offset |ldv_try_module_get_#in~module.offset|)) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 4999 5016) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 4999 5016) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point lock_sock_nestedFINAL(lines 5090 5092) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point lock_sock_nestedENTRY(lines 5090 5092) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point lock_sock_nestedEXIT(lines 5090 5092) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,111 INFO L443 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L446 ceAbstractionStarter]: At program point sock_unregisterENTRY(lines 5110 5112) the Hoare annotation is: true [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point sock_unregisterEXIT(lines 5110 5112) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point sock_unregisterFINAL(lines 5110 5112) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point pppox_skEXIT(lines 4718 4723) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point pppox_skENTRY(lines 4718 4723) no Hoare annotation was computed. [2019-11-06 23:16:56,112 INFO L443 ceAbstractionStarter]: For program point pppox_skFINAL(lines 4718 4723) no Hoare annotation was computed. [2019-11-06 23:16:56,113 INFO L446 ceAbstractionStarter]: At program point ldv_undefined_intENTRY(lines 5087 5089) the Hoare annotation is: true [2019-11-06 23:16:56,113 INFO L443 ceAbstractionStarter]: For program point ldv_undefined_intEXIT(lines 5087 5089) no Hoare annotation was computed. [2019-11-06 23:16:56,113 INFO L443 ceAbstractionStarter]: For program point ldv_undefined_intFINAL(lines 5087 5089) no Hoare annotation was computed. [2019-11-06 23:16:56,113 INFO L443 ceAbstractionStarter]: For program point __request_moduleEXIT(lines 5080 5082) no Hoare annotation was computed. [2019-11-06 23:16:56,113 INFO L443 ceAbstractionStarter]: For program point __request_moduleENTRY(lines 5080 5082) no Hoare annotation was computed. [2019-11-06 23:16:56,113 INFO L443 ceAbstractionStarter]: For program point __request_moduleFINAL(lines 5080 5082) no Hoare annotation was computed. [2019-11-06 23:16:56,114 INFO L439 ceAbstractionStarter]: At program point L4895(lines 4864 4897) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,114 INFO L439 ceAbstractionStarter]: At program point L4893(line 4893) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (and (<= ~ldv_module_refcounter~0 2) (<= 2 ~ldv_module_refcounter~0) (let ((.cse4 (+ (* pppox_create_~protocol 4) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) 8))) (let ((.cse0 (select (select |#memory_$Pointer$.offset| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.base| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 4294967296 (div (+ .cse0 .cse1 (- 1)) 4294967296)) 4294967295))))) (<= (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset|) (+ (* 4294967296 (div (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset| (- 1)) 4294967296)) 4294967295)) (= pppox_create_~tmp~2 1))) [2019-11-06 23:16:56,114 INFO L443 ceAbstractionStarter]: For program point L4893-1(line 4893) no Hoare annotation was computed. [2019-11-06 23:16:56,114 INFO L443 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4861 4898) no Hoare annotation was computed. [2019-11-06 23:16:56,114 INFO L443 ceAbstractionStarter]: For program point L4869(lines 4869 4872) no Hoare annotation was computed. [2019-11-06 23:16:56,115 INFO L443 ceAbstractionStarter]: For program point L4892-1(line 4892) no Hoare annotation was computed. [2019-11-06 23:16:56,115 INFO L439 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4861 4898) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,115 INFO L439 ceAbstractionStarter]: At program point L4892(line 4892) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (and (<= ~ldv_module_refcounter~0 2) (<= 2 ~ldv_module_refcounter~0) (let ((.cse4 (+ (* pppox_create_~protocol 4) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) 8))) (let ((.cse0 (select (select |#memory_$Pointer$.offset| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.base| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 4294967296 (div (+ .cse0 .cse1 (- 1)) 4294967296)) 4294967295))))) (= pppox_create_~tmp~2 1))) [2019-11-06 23:16:56,115 INFO L443 ceAbstractionStarter]: For program point L4886(lines 4886 4889) no Hoare annotation was computed. [2019-11-06 23:16:56,115 INFO L443 ceAbstractionStarter]: For program point L4884-1(line 4884) no Hoare annotation was computed. [2019-11-06 23:16:56,116 INFO L439 ceAbstractionStarter]: At program point L4884(line 4884) the Hoare annotation is: (or (let ((.cse2 (+ (* pppox_create_~protocol 4) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) 8))) (and (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) |pppox_create_#t~mem35.offset|) (= |pppox_create_#t~mem35.base| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)))) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,116 INFO L443 ceAbstractionStarter]: For program point L4880(lines 4880 4890) no Hoare annotation was computed. [2019-11-06 23:16:56,116 INFO L443 ceAbstractionStarter]: For program point L4874(lines 4874 4879) no Hoare annotation was computed. [2019-11-06 23:16:56,116 INFO L443 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4861 4898) no Hoare annotation was computed. [2019-11-06 23:16:56,116 INFO L443 ceAbstractionStarter]: For program point L4874-2(lines 4874 4879) no Hoare annotation was computed. [2019-11-06 23:16:56,116 INFO L443 ceAbstractionStarter]: For program point L4866(lines 4866 4872) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L446 ceAbstractionStarter]: At program point ldv_initializeFINAL(lines 5083 5085) the Hoare annotation is: true [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point ldv_initializeEXIT(lines 5083 5085) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L446 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point external_allocFINAL(lines 5114 5116) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point external_allocEXIT(lines 5114 5116) no Hoare annotation was computed. [2019-11-06 23:16:56,117 INFO L443 ceAbstractionStarter]: For program point external_allocENTRY(lines 5114 5116) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point ldv_module_put_and_exitEXIT(lines 5033 5042) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point L5037(lines 5035 5041) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point ldv_module_put_and_exitENTRY(lines 5033 5042) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point unregister_pppox_protoEXIT(lines 4747 4759) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point unregister_pppox_protoENTRY(lines 4747 4759) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point L4751(lines 4751 4754) no Hoare annotation was computed. [2019-11-06 23:16:56,118 INFO L443 ceAbstractionStarter]: For program point L4750(lines 4750 4756) no Hoare annotation was computed. [2019-11-06 23:16:56,119 INFO L443 ceAbstractionStarter]: For program point L4750-1(lines 4747 4759) no Hoare annotation was computed. [2019-11-06 23:16:56,119 INFO L443 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4909 4917) no Hoare annotation was computed. [2019-11-06 23:16:56,119 INFO L446 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4909 4917) the Hoare annotation is: true [2019-11-06 23:16:56,119 INFO L443 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4909 4917) no Hoare annotation was computed. [2019-11-06 23:16:56,119 INFO L443 ceAbstractionStarter]: For program point pppox_unbind_sockEXIT(lines 4760 4773) no Hoare annotation was computed. [2019-11-06 23:16:56,119 INFO L443 ceAbstractionStarter]: For program point L4766(line 4766) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point pppox_unbind_sockENTRY(lines 4760 4773) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point L4763(lines 4763 4770) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point L4765(line 4765) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point L4766-1(line 4766) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point L4765-1(line 4765) no Hoare annotation was computed. [2019-11-06 23:16:56,120 INFO L443 ceAbstractionStarter]: For program point L4763-2(lines 4760 4773) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point ldv_module_refcountFINAL(lines 5043 5048) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point ldv_module_refcountENTRY(lines 5043 5048) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point ldv_module_refcountEXIT(lines 5043 5048) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point release_sockENTRY(lines 5103 5105) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point release_sockEXIT(lines 5103 5105) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point release_sockFINAL(lines 5103 5105) no Hoare annotation was computed. [2019-11-06 23:16:56,121 INFO L443 ceAbstractionStarter]: For program point L4735(lines 4735 4738) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point L4732(lines 4732 4738) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point register_pppox_protoEXIT(lines 4729 4746) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point register_pppox_protoENTRY(lines 4729 4746) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point L4739(lines 4739 4742) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point register_pppox_protoFINAL(lines 4729 4746) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4900 4908) no Hoare annotation was computed. [2019-11-06 23:16:56,122 INFO L443 ceAbstractionStarter]: For program point L4904-1(line 4904) no Hoare annotation was computed. [2019-11-06 23:16:56,123 INFO L446 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4900 4908) the Hoare annotation is: true [2019-11-06 23:16:56,123 INFO L446 ceAbstractionStarter]: At program point L4904(line 4904) the Hoare annotation is: true [2019-11-06 23:16:56,123 INFO L443 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4900 4908) no Hoare annotation was computed. [2019-11-06 23:16:56,123 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,123 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) [2019-11-06 23:16:56,123 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,124 INFO L446 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5049 5060) the Hoare annotation is: true [2019-11-06 23:16:56,124 INFO L439 ceAbstractionStarter]: At program point L5054(line 5054) the Hoare annotation is: (not (= 1 ~ldv_module_refcounter~0)) [2019-11-06 23:16:56,124 INFO L443 ceAbstractionStarter]: For program point L5052(lines 5049 5060) no Hoare annotation was computed. [2019-11-06 23:16:56,124 INFO L443 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5049 5060) no Hoare annotation was computed. [2019-11-06 23:16:56,124 INFO L443 ceAbstractionStarter]: For program point ppp_unregister_channelEXIT(lines 5100 5102) no Hoare annotation was computed. [2019-11-06 23:16:56,124 INFO L443 ceAbstractionStarter]: For program point ppp_unregister_channelENTRY(lines 5100 5102) no Hoare annotation was computed. [2019-11-06 23:16:56,124 INFO L443 ceAbstractionStarter]: For program point ppp_unregister_channelFINAL(lines 5100 5102) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L443 ceAbstractionStarter]: For program point ppp_channel_indexENTRY(lines 5097 5099) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L443 ceAbstractionStarter]: For program point ppp_channel_indexEXIT(lines 5097 5099) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L443 ceAbstractionStarter]: For program point ppp_channel_indexFINAL(lines 5097 5099) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L443 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5061 5069) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L443 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5061 5069) no Hoare annotation was computed. [2019-11-06 23:16:56,125 INFO L439 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5061 5069) the Hoare annotation is: (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,126 INFO L439 ceAbstractionStarter]: At program point L5065(line 5065) the Hoare annotation is: (or (and (= ldv_try_module_get_1_~module.base |ldv_try_module_get_1_#in~module.base|) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (= |ldv_try_module_get_1_#in~module.offset| ldv_try_module_get_1_~module.offset)) (not (= 1 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,126 INFO L443 ceAbstractionStarter]: For program point L5065-1(line 5065) no Hoare annotation was computed. [2019-11-06 23:16:56,126 INFO L446 ceAbstractionStarter]: At program point sock_registerENTRY(lines 5107 5109) the Hoare annotation is: true [2019-11-06 23:16:56,126 INFO L443 ceAbstractionStarter]: For program point sock_registerEXIT(lines 5107 5109) no Hoare annotation was computed. [2019-11-06 23:16:56,126 INFO L443 ceAbstractionStarter]: For program point sock_registerFINAL(lines 5107 5109) no Hoare annotation was computed. [2019-11-06 23:16:56,126 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,127 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2019-11-06 23:16:56,127 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 23:16:56,127 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 23:16:56,127 INFO L439 ceAbstractionStarter]: At program point L5023(line 5023) the Hoare annotation is: (not (<= 2 |old(~ldv_module_refcounter~0)|)) [2019-11-06 23:16:56,127 INFO L443 ceAbstractionStarter]: For program point L5020-2(lines 5017 5032) no Hoare annotation was computed. [2019-11-06 23:16:56,127 INFO L443 ceAbstractionStarter]: For program point L5021(lines 5021 5026) no Hoare annotation was computed. [2019-11-06 23:16:56,127 INFO L443 ceAbstractionStarter]: For program point L5020(lines 5020 5029) no Hoare annotation was computed. [2019-11-06 23:16:56,128 INFO L443 ceAbstractionStarter]: For program point L5021-1(lines 5021 5026) no Hoare annotation was computed. [2019-11-06 23:16:56,128 INFO L439 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5017 5032) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (<= 2 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,128 INFO L443 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5017 5032) no Hoare annotation was computed. [2019-11-06 23:16:56,128 INFO L446 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 4981 4986) the Hoare annotation is: true [2019-11-06 23:16:56,128 INFO L443 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4984) no Hoare annotation was computed. [2019-11-06 23:16:56,128 INFO L443 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 4981 4986) no Hoare annotation was computed. [2019-11-06 23:16:56,129 INFO L443 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 4981 4986) no Hoare annotation was computed. [2019-11-06 23:16:56,129 INFO L443 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5070 5078) no Hoare annotation was computed. [2019-11-06 23:16:56,129 INFO L443 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5070 5078) no Hoare annotation was computed. [2019-11-06 23:16:56,129 INFO L439 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5070 5078) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (<= 2 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,129 INFO L439 ceAbstractionStarter]: At program point L5074(line 5074) the Hoare annotation is: (or (and (= |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|) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) (not (<= 2 |old(~ldv_module_refcounter~0)|))) [2019-11-06 23:16:56,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:16:56 BoogieIcfgContainer [2019-11-06 23:16:56,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 23:16:56,147 INFO L168 Benchmark]: Toolchain (without parser) took 6991.63 ms. Allocated memory was 139.5 MB in the beginning and 297.8 MB in the end (delta: 158.3 MB). Free memory was 98.0 MB in the beginning and 89.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 166.9 MB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,148 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1200.28 ms. Allocated memory was 139.5 MB in the beginning and 209.2 MB in the end (delta: 69.7 MB). Free memory was 97.8 MB in the beginning and 129.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,150 INFO L168 Benchmark]: Boogie Preprocessor took 119.33 ms. Allocated memory is still 209.2 MB. Free memory was 129.1 MB in the beginning and 125.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,151 INFO L168 Benchmark]: RCFGBuilder took 959.09 ms. Allocated memory was 209.2 MB in the beginning and 241.2 MB in the end (delta: 32.0 MB). Free memory was 125.5 MB in the beginning and 176.2 MB in the end (delta: -50.7 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,152 INFO L168 Benchmark]: TraceAbstraction took 4707.54 ms. Allocated memory was 241.2 MB in the beginning and 297.8 MB in the end (delta: 56.6 MB). Free memory was 176.2 MB in the beginning and 89.4 MB in the end (delta: 86.8 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB. [2019-11-06 23:16:56,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1200.28 ms. Allocated memory was 139.5 MB in the beginning and 209.2 MB in the end (delta: 69.7 MB). Free memory was 97.8 MB in the beginning and 129.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.33 ms. Allocated memory is still 209.2 MB. Free memory was 129.1 MB in the beginning and 125.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 959.09 ms. Allocated memory was 209.2 MB in the beginning and 241.2 MB in the end (delta: 32.0 MB). Free memory was 125.5 MB in the beginning and 176.2 MB in the end (delta: -50.7 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4707.54 ms. Allocated memory was 241.2 MB in the beginning and 297.8 MB in the end (delta: 56.6 MB). Free memory was 176.2 MB in the beginning and 89.4 MB in the end (delta: 86.8 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4984]: 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: 4930]: Loop Invariant Derived loop invariant: !(1 == \old(ldv_module_refcounter)) || ldv_module_refcounter == \old(ldv_module_refcounter) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: !(1 == \old(ldv_module_refcounter)) || ldv_module_refcounter == \old(ldv_module_refcounter) - InvariantResult [Line: 4864]: Loop Invariant Derived loop invariant: !(1 == \old(ldv_module_refcounter)) || ldv_module_refcounter == \old(ldv_module_refcounter) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4945]: Loop Invariant Derived loop invariant: !(1 == \old(ldv_module_refcounter)) || ldv_module_refcounter == \old(ldv_module_refcounter) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter || !(1 == \old(ldv_module_refcounter)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 175 locations, 1 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 750 SDtfs, 561 SDslu, 2570 SDs, 0 SdLazy, 689 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 58 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 231 PreInvPairs, 248 NumberOfFragments, 503 HoareAnnotationTreeSize, 231 FomulaSimplifications, 623 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 473 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 145000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 48/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...