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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 10:49:37,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 10:49:37,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 10:49:37,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 10:49:37,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 10:49:37,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 10:49:37,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 10:49:37,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 10:49:37,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 10:49:37,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 10:49:37,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 10:49:37,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 10:49:37,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 10:49:37,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 10:49:37,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 10:49:37,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 10:49:37,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 10:49:37,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 10:49:37,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 10:49:37,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 10:49:37,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 10:49:37,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 10:49:37,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 10:49:37,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 10:49:37,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 10:49:37,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 10:49:37,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 10:49:37,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 10:49:37,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 10:49:37,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 10:49:37,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 10:49:37,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 10:49:37,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 10:49:37,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 10:49:37,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 10:49:37,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 10:49:37,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 10:49:37,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 10:49:37,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 10:49:37,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 10:49:37,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 10:49:37,784 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 [2019-10-07 10:49:37,798 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 10:49:37,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 10:49:37,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 10:49:37,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 10:49:37,800 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 10:49:37,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 10:49:37,801 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 10:49:37,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 10:49:37,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 10:49:37,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 10:49:37,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 10:49:37,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 10:49:37,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 10:49:37,802 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 10:49:37,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 10:49:37,803 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 10:49:37,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 10:49:37,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 10:49:37,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 10:49:37,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 10:49:37,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 10:49:37,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 10:49:37,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 10:49:37,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 10:49:37,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 10:49:37,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 10:49:37,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 10:49:37,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 10:49:37,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 10:49:38,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 10:49:38,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 10:49:38,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 10:49:38,144 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 10:49:38,144 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 10:49:38,145 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-07 10:49:38,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aaf2044/704a01757b054d23935a8d5fae8abf0c/FLAGa498b5b33 [2019-10-07 10:49:39,096 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 10:49:39,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-07 10:49:39,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aaf2044/704a01757b054d23935a8d5fae8abf0c/FLAGa498b5b33 [2019-10-07 10:49:39,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aaf2044/704a01757b054d23935a8d5fae8abf0c [2019-10-07 10:49:39,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 10:49:39,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 10:49:39,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 10:49:39,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 10:49:39,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 10:49:39,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 10:49:39" (1/1) ... [2019-10-07 10:49:39,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@944d793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:39, skipping insertion in model container [2019-10-07 10:49:39,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 10:49:39" (1/1) ... [2019-10-07 10:49:39,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 10:49:39,836 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 10:49:41,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 10:49:41,754 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 10:49:42,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 10:49:42,444 INFO L192 MainTranslator]: Completed translation [2019-10-07 10:49:42,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42 WrapperNode [2019-10-07 10:49:42,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 10:49:42,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 10:49:42,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 10:49:42,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 10:49:42,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (1/1) ... [2019-10-07 10:49:42,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 10:49:42,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 10:49:42,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 10:49:42,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 10:49:42,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (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 [2019-10-07 10:49:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 10:49:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 10:49:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 10:49:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 10:49:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-07 10:49:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 10:49:42,883 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 10:49:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2019-10-07 10:49:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 10:49:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-07 10:49:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-07 10:49:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 10:49:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-07 10:49:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 10:49:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2019-10-07 10:49:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 10:49:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-07 10:49:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2019-10-07 10:49:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 10:49:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 10:49:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 10:49:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 10:49:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 10:49:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 10:49:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-07 10:49:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-07 10:49:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2019-10-07 10:49:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2019-10-07 10:49:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ATM_SD [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2019-10-07 10:49:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_recv_control [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_open [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_proc [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2019-10-07 10:49:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure find_vcc [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_attach [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create_persistent [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_remove_persistent [2019-10-07 10:49:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_ioctl [2019-10-07 10:49:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_init [2019-10-07 10:49:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_exit [2019-10-07 10:49:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_3 [2019-10-07 10:49:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_2 [2019-10-07 10:49:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 10:49:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_5 [2019-10-07 10:49:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-07 10:49:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_7 [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_8 [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_9 [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 10:49:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 10:49:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-07 10:49:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-07 10:49:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-07 10:49:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-07 10:49:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-07 10:49:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 10:49:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-07 10:49:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 10:49:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-07 10:49:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-07 10:49:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2019-10-07 10:49:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2019-10-07 10:49:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2019-10-07 10:49:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_init_aal5 [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_atm_ioctl [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2019-10-07 10:49:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 10:49:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2019-10-07 10:49:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure register_atm_ioctl [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 10:49:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_insert_socket [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 10:49:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 10:49:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 10:49:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 10:49:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-07 10:49:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2019-10-07 10:49:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 10:49:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-07 10:49:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-07 10:49:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 10:49:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-07 10:49:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 10:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 10:49:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-07 10:49:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2019-10-07 10:49:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 10:49:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-07 10:49:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-07 10:49:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-07 10:49:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-07 10:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-07 10:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-07 10:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-07 10:49:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2019-10-07 10:49:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2019-10-07 10:49:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 10:49:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_9 [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-07 10:49:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 10:49:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 10:49:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 10:49:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_3 [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_2 [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 10:49:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-07 10:49:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure ATM_SD [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2019-10-07 10:49:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_7 [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_5 [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_8 [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_insert_socket [2019-10-07 10:49:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure register_atm_ioctl [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_atm_ioctl [2019-10-07 10:49:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure atm_init_aal5 [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_recv_control [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_open [2019-10-07 10:49:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_proc [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure find_vcc [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2019-10-07 10:49:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_attach [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create_persistent [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_remove_persistent [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_ioctl [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_init [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_exit [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2019-10-07 10:49:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 10:49:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 10:49:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 10:49:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 10:49:43,945 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 10:49:49,066 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-07 10:49:59,326 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 10:49:59,327 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 10:49:59,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 10:49:59 BoogieIcfgContainer [2019-10-07 10:49:59,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 10:49:59,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 10:49:59,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 10:49:59,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 10:49:59,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 10:49:39" (1/3) ... [2019-10-07 10:49:59,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361b4634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 10:49:59, skipping insertion in model container [2019-10-07 10:49:59,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 10:49:42" (2/3) ... [2019-10-07 10:49:59,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361b4634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 10:49:59, skipping insertion in model container [2019-10-07 10:49:59,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 10:49:59" (3/3) ... [2019-10-07 10:49:59,337 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-07 10:49:59,347 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 10:49:59,358 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 10:49:59,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 10:49:59,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 10:49:59,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 10:49:59,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 10:49:59,404 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 10:49:59,404 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 10:49:59,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 10:49:59,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 10:49:59,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 10:49:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states. [2019-10-07 10:49:59,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-07 10:49:59,453 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:49:59,454 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:49:59,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:49:59,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:49:59,462 INFO L82 PathProgramCache]: Analyzing trace with hash 44885906, now seen corresponding path program 1 times [2019-10-07 10:49:59,472 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:49:59,472 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:49:59,473 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:49:59,473 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:49:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:49:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-07 10:50:00,187 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:00,188 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:00,188 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 10:50:00,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 10:50:00,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 10:50:00,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:00,210 INFO L87 Difference]: Start difference. First operand 695 states. Second operand 3 states. [2019-10-07 10:50:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:00,532 INFO L93 Difference]: Finished difference Result 1985 states and 2621 transitions. [2019-10-07 10:50:00,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 10:50:00,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-10-07 10:50:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:00,590 INFO L225 Difference]: With dead ends: 1985 [2019-10-07 10:50:00,591 INFO L226 Difference]: Without dead ends: 1304 [2019-10-07 10:50:00,605 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-10-07 10:50:00,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1301. [2019-10-07 10:50:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-10-07 10:50:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1692 transitions. [2019-10-07 10:50:00,818 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1692 transitions. Word has length 91 [2019-10-07 10:50:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:00,819 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1692 transitions. [2019-10-07 10:50:00,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 10:50:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1692 transitions. [2019-10-07 10:50:00,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-07 10:50:00,825 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:00,826 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:00,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:00,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1137181633, now seen corresponding path program 1 times [2019-10-07 10:50:00,829 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:00,829 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:00,829 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:00,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:00,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-07 10:50:01,273 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:01,273 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:01,273 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 10:50:01,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 10:50:01,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 10:50:01,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 10:50:01,276 INFO L87 Difference]: Start difference. First operand 1301 states and 1692 transitions. Second operand 5 states. [2019-10-07 10:50:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:01,396 INFO L93 Difference]: Finished difference Result 1306 states and 1696 transitions. [2019-10-07 10:50:01,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 10:50:01,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2019-10-07 10:50:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:01,408 INFO L225 Difference]: With dead ends: 1306 [2019-10-07 10:50:01,408 INFO L226 Difference]: Without dead ends: 1301 [2019-10-07 10:50:01,410 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-07 10:50:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2019-10-07 10:50:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2019-10-07 10:50:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-10-07 10:50:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1691 transitions. [2019-10-07 10:50:01,497 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1691 transitions. Word has length 93 [2019-10-07 10:50:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:01,499 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1691 transitions. [2019-10-07 10:50:01,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 10:50:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1691 transitions. [2019-10-07 10:50:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-07 10:50:01,512 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:01,512 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:01,512 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:01,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:01,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1841284351, now seen corresponding path program 1 times [2019-10-07 10:50:01,513 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:01,513 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:01,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:01,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-07 10:50:01,678 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:01,678 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:01,678 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 10:50:01,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 10:50:01,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 10:50:01,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:01,680 INFO L87 Difference]: Start difference. First operand 1301 states and 1691 transitions. Second operand 3 states. [2019-10-07 10:50:01,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:01,768 INFO L93 Difference]: Finished difference Result 2366 states and 3060 transitions. [2019-10-07 10:50:01,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 10:50:01,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-10-07 10:50:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:01,777 INFO L225 Difference]: With dead ends: 2366 [2019-10-07 10:50:01,777 INFO L226 Difference]: Without dead ends: 1093 [2019-10-07 10:50:01,782 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-10-07 10:50:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-10-07 10:50:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-10-07 10:50:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1403 transitions. [2019-10-07 10:50:01,843 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1403 transitions. Word has length 105 [2019-10-07 10:50:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:01,846 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 1403 transitions. [2019-10-07 10:50:01,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 10:50:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1403 transitions. [2019-10-07 10:50:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-07 10:50:01,852 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:01,852 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:01,854 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:01,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:01,854 INFO L82 PathProgramCache]: Analyzing trace with hash -979085374, now seen corresponding path program 1 times [2019-10-07 10:50:01,854 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:01,855 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:01,855 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:01,855 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-07 10:50:02,093 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:02,094 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:02,094 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 10:50:02,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 10:50:02,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 10:50:02,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:02,095 INFO L87 Difference]: Start difference. First operand 1093 states and 1403 transitions. Second operand 3 states. [2019-10-07 10:50:02,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:02,215 INFO L93 Difference]: Finished difference Result 3214 states and 4156 transitions. [2019-10-07 10:50:02,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 10:50:02,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-10-07 10:50:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:02,232 INFO L225 Difference]: With dead ends: 3214 [2019-10-07 10:50:02,232 INFO L226 Difference]: Without dead ends: 2140 [2019-10-07 10:50:02,237 INFO L606 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 [2019-10-07 10:50:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-10-07 10:50:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2128. [2019-10-07 10:50:02,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2019-10-07 10:50:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2740 transitions. [2019-10-07 10:50:02,358 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2740 transitions. Word has length 106 [2019-10-07 10:50:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:02,358 INFO L462 AbstractCegarLoop]: Abstraction has 2128 states and 2740 transitions. [2019-10-07 10:50:02,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 10:50:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2740 transitions. [2019-10-07 10:50:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 10:50:02,363 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:02,364 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:02,364 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:02,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1516553175, now seen corresponding path program 1 times [2019-10-07 10:50:02,365 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:02,365 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:02,365 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:02,365 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-07 10:50:02,527 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:02,527 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:02,527 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 10:50:02,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 10:50:02,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 10:50:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:02,528 INFO L87 Difference]: Start difference. First operand 2128 states and 2740 transitions. Second operand 3 states. [2019-10-07 10:50:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:02,682 INFO L93 Difference]: Finished difference Result 4206 states and 5440 transitions. [2019-10-07 10:50:02,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 10:50:02,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-07 10:50:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:02,697 INFO L225 Difference]: With dead ends: 4206 [2019-10-07 10:50:02,698 INFO L226 Difference]: Without dead ends: 2106 [2019-10-07 10:50:02,706 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 10:50:02,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2019-10-07 10:50:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2080. [2019-10-07 10:50:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-07 10:50:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2708 transitions. [2019-10-07 10:50:02,825 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2708 transitions. Word has length 145 [2019-10-07 10:50:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:02,825 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2708 transitions. [2019-10-07 10:50:02,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 10:50:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2708 transitions. [2019-10-07 10:50:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 10:50:02,832 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:02,832 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:02,832 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:02,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:02,833 INFO L82 PathProgramCache]: Analyzing trace with hash 963603630, now seen corresponding path program 1 times [2019-10-07 10:50:02,833 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:02,833 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:02,833 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:02,833 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 10:50:03,082 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:03,082 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 10:50:03,082 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 10:50:03,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 10:50:03,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 10:50:03,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 10:50:03,083 INFO L87 Difference]: Start difference. First operand 2080 states and 2708 transitions. Second operand 4 states. [2019-10-07 10:50:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:07,881 INFO L93 Difference]: Finished difference Result 3805 states and 4959 transitions. [2019-10-07 10:50:07,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 10:50:07,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-10-07 10:50:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:07,896 INFO L225 Difference]: With dead ends: 3805 [2019-10-07 10:50:07,896 INFO L226 Difference]: Without dead ends: 2086 [2019-10-07 10:50:07,904 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 10:50:07,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2019-10-07 10:50:08,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2084. [2019-10-07 10:50:08,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2019-10-07 10:50:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2712 transitions. [2019-10-07 10:50:08,013 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2712 transitions. Word has length 159 [2019-10-07 10:50:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:08,014 INFO L462 AbstractCegarLoop]: Abstraction has 2084 states and 2712 transitions. [2019-10-07 10:50:08,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 10:50:08,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2712 transitions. [2019-10-07 10:50:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 10:50:08,022 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:08,023 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:08,023 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:08,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1006211888, now seen corresponding path program 1 times [2019-10-07 10:50:08,024 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:08,024 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:08,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:08,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-10-07 10:50:08,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:08,585 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 10:50:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 10:50:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:09,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 2402 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 10:50:09,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 10:50:09,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-07 10:50:09,610 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 10:50:09,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:09,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-10-07 10:50:10,054 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 10:50:10,055 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-10-07 10:50:10,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 10:50:10,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 10:50:10,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-07 10:50:10,057 INFO L87 Difference]: Start difference. First operand 2084 states and 2712 transitions. Second operand 6 states. [2019-10-07 10:50:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 10:50:10,308 INFO L93 Difference]: Finished difference Result 4153 states and 5459 transitions. [2019-10-07 10:50:10,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 10:50:10,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2019-10-07 10:50:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 10:50:10,326 INFO L225 Difference]: With dead ends: 4153 [2019-10-07 10:50:10,326 INFO L226 Difference]: Without dead ends: 2089 [2019-10-07 10:50:10,339 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-10-07 10:50:10,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2019-10-07 10:50:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2019-10-07 10:50:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2019-10-07 10:50:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2717 transitions. [2019-10-07 10:50:10,460 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2717 transitions. Word has length 168 [2019-10-07 10:50:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 10:50:10,461 INFO L462 AbstractCegarLoop]: Abstraction has 2089 states and 2717 transitions. [2019-10-07 10:50:10,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 10:50:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2717 transitions. [2019-10-07 10:50:10,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 10:50:10,467 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 10:50:10,468 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 10:50:10,678 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 10:50:10,679 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 10:50:10,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 10:50:10,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1637919614, now seen corresponding path program 1 times [2019-10-07 10:50:10,680 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 10:50:10,680 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:10,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:10,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 10:50:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 10:50:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-10-07 10:50:11,147 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 10:50:11,147 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 10:50:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 10:50:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 10:50:12,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-07 10:50:12,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 10:50:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-07 10:50:12,185 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 10:50:12,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:12,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:12,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:12,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 10:50:16,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 10:50:18,849 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 38 [2019-10-07 10:50:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-10-07 10:50:18,968 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 10:50:19,015 INFO L162 IcfgInterpreter]: Started Sifa with 130 locations of interest [2019-10-07 10:50:19,016 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 10:50:19,031 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 10:50:19,041 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 10:50:19,041 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 10:50:21,703 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1865 [2019-10-07 10:50:23,902 WARN L191 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 1853 [2019-10-07 10:50:24,799 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1853 [2019-10-07 10:50:25,305 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1853 [2019-10-07 10:50:26,008 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:26,626 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:27,305 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:27,929 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:28,647 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:29,243 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:29,936 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:30,540 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:31,224 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:31,848 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1913 [2019-10-07 10:50:31,880 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 136 for LOIs [2019-10-07 10:50:32,753 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1869 [2019-10-07 10:50:33,369 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1869 [2019-10-07 10:50:34,047 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1929 [2019-10-07 10:50:34,052 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1927 for LOIs [2019-10-07 10:50:34,632 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1927 [2019-10-07 10:50:35,300 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1927 [2019-10-07 10:50:36,022 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1971 [2019-10-07 10:50:36,750 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1947 [2019-10-07 10:50:37,355 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1947 [2019-10-07 10:50:38,070 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 1995 [2019-10-07 10:50:41,290 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2019-10-07 10:50:42,243 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 2132 [2019-10-07 10:50:44,038 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 2136 DAG size of output: 2134 [2019-10-07 10:50:44,315 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 10:50:44,316 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 10:50:44,327 INFO L168 Benchmark]: Toolchain (without parser) took 64656.14 ms. Allocated memory was 144.2 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 92.0 MB in the beginning and 240.9 MB in the end (delta: -148.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 10:50:44,328 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 10:50:44,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2773.53 ms. Allocated memory was 144.2 MB in the beginning and 254.8 MB in the end (delta: 110.6 MB). Free memory was 91.8 MB in the beginning and 179.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. [2019-10-07 10:50:44,332 INFO L168 Benchmark]: Boogie Preprocessor took 343.27 ms. Allocated memory is still 254.8 MB. Free memory was 179.4 MB in the beginning and 157.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-10-07 10:50:44,332 INFO L168 Benchmark]: RCFGBuilder took 16538.98 ms. Allocated memory was 254.8 MB in the beginning and 733.5 MB in the end (delta: 478.7 MB). Free memory was 157.6 MB in the beginning and 200.4 MB in the end (delta: -42.8 MB). Peak memory consumption was 593.3 MB. Max. memory is 7.1 GB. [2019-10-07 10:50:44,333 INFO L168 Benchmark]: TraceAbstraction took 44995.48 ms. Allocated memory was 733.5 MB in the beginning and 1.6 GB in the end (delta: 825.2 MB). Free memory was 200.4 MB in the beginning and 240.9 MB in the end (delta: -40.5 MB). Peak memory consumption was 784.7 MB. Max. memory is 7.1 GB. [2019-10-07 10:50:44,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2773.53 ms. Allocated memory was 144.2 MB in the beginning and 254.8 MB in the end (delta: 110.6 MB). Free memory was 91.8 MB in the beginning and 179.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 343.27 ms. Allocated memory is still 254.8 MB. Free memory was 179.4 MB in the beginning and 157.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16538.98 ms. Allocated memory was 254.8 MB in the beginning and 733.5 MB in the end (delta: 478.7 MB). Free memory was 157.6 MB in the beginning and 200.4 MB in the end (delta: -42.8 MB). Peak memory consumption was 593.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44995.48 ms. Allocated memory was 733.5 MB in the beginning and 1.6 GB in the end (delta: 825.2 MB). Free memory was 200.4 MB in the beginning and 240.9 MB in the end (delta: -40.5 MB). Peak memory consumption was 784.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...