java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:52:45,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:52:45,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:52:46,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:52:46,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:52:46,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:52:46,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:52:46,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:52:46,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:52:46,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:52:46,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:52:46,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:52:46,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:52:46,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:52:46,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:52:46,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:52:46,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:52:46,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:52:46,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:52:46,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:52:46,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:52:46,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:52:46,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:52:46,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:52:46,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:52:46,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:52:46,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:52:46,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:52:46,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:52:46,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:52:46,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:52:46,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:52:46,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:52:46,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:52:46,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:52:46,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:52:46,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:52:46,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:52:46,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:52:46,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:52:46,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:52:46,057 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 [2019-10-15 00:52:46,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:52:46,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:52:46,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:52:46,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:52:46,087 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:52:46,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:52:46,087 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:52:46,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:52:46,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:52:46,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:52:46,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:52:46,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:52:46,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:52:46,090 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:52:46,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:52:46,090 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:52:46,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:52:46,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:52:46,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:52:46,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:52:46,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:52:46,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:52:46,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:52:46,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:52:46,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:52:46,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:52:46,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:52:46,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:52:46,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:52:46,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:52:46,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:52:46,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:52:46,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:52:46,398 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:52:46,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-15 00:52:46,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93996ce51/9992ccfcd47c4b6896c4c9d58e57926c/FLAGa45a9ec32 [2019-10-15 00:52:47,291 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:52:47,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-15 00:52:47,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93996ce51/9992ccfcd47c4b6896c4c9d58e57926c/FLAGa45a9ec32 [2019-10-15 00:52:47,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93996ce51/9992ccfcd47c4b6896c4c9d58e57926c [2019-10-15 00:52:47,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:52:47,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:52:47,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:52:47,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:52:47,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:52:47,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:52:47" (1/1) ... [2019-10-15 00:52:47,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3193cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:47, skipping insertion in model container [2019-10-15 00:52:47,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:52:47" (1/1) ... [2019-10-15 00:52:47,786 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:52:47,914 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:52:49,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:52:49,833 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:52:50,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:52:50,509 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:52:50,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50 WrapperNode [2019-10-15 00:52:50,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:52:50,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:52:50,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:52:50,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:52:50,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... [2019-10-15 00:52:50,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:52:50,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:52:50,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:52:50,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:52:50,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:52:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:52:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:52:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:52:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:52:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-15 00:52:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 00:52:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-15 00:52:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2019-10-15 00:52:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 00:52:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 00:52:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-15 00:52:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-15 00:52:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-15 00:52:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 00:52:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2019-10-15 00:52:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 00:52:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-15 00:52:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2019-10-15 00:52:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:52:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:52:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2019-10-15 00:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2019-10-15 00:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ATM_SD [2019-10-15 00:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2019-10-15 00:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2019-10-15 00:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2019-10-15 00:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_recv_control [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_open [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2019-10-15 00:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_proc [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure find_vcc [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_attach [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create_persistent [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_remove_persistent [2019-10-15 00:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_ioctl [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_init [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_exit [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_3 [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_2 [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_5 [2019-10-15 00:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-15 00:52:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_7 [2019-10-15 00:52:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_8 [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_9 [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 00:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-15 00:52:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-15 00:52:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-15 00:52:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-15 00:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-15 00:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-15 00:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-15 00:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 00:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 00:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-15 00:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-15 00:52:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-15 00:52:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2019-10-15 00:52:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2019-10-15 00:52:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2019-10-15 00:52:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_init_aal5 [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_atm_ioctl [2019-10-15 00:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure register_atm_ioctl [2019-10-15 00:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_insert_socket [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-15 00:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:52:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:52:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-15 00:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 00:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-15 00:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2019-10-15 00:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 00:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 00:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-15 00:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-15 00:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-15 00:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 00:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 00:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 00:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 00:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-15 00:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2019-10-15 00:52:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 00:52:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-15 00:52:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-15 00:52:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-15 00:52:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-15 00:52:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-15 00:52:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-15 00:52:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:52:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2019-10-15 00:52:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2019-10-15 00:52:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:52:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:52:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-15 00:52:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_9 [2019-10-15 00:52:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-15 00:52:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-15 00:52:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-15 00:52:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-15 00:52:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 00:52:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:52:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:52:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:52:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:52:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:52:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:52:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:52:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:52:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:52:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:52:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:52:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:52:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:52:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:52:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 00:52:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 00:52:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:52:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:52:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:52:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:52:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:52:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_3 [2019-10-15 00:52:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_2 [2019-10-15 00:52:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 00:52:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-15 00:52:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 00:52:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-15 00:52:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-15 00:52:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-15 00:52:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-15 00:52:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-15 00:52:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-15 00:52:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-15 00:52:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:52:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2019-10-15 00:52:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2019-10-15 00:52:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2019-10-15 00:52:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure ATM_SD [2019-10-15 00:52:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2019-10-15 00:52:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2019-10-15 00:52:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_7 [2019-10-15 00:52:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2019-10-15 00:52:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2019-10-15 00:52:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_5 [2019-10-15 00:52:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_8 [2019-10-15 00:52:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_insert_socket [2019-10-15 00:52:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure register_atm_ioctl [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_atm_ioctl [2019-10-15 00:52:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure atm_init_aal5 [2019-10-15 00:52:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2019-10-15 00:52:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:52:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:52:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_recv_control [2019-10-15 00:52:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2019-10-15 00:52:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_open [2019-10-15 00:52:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2019-10-15 00:52:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2019-10-15 00:52:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_proc [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure find_vcc [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2019-10-15 00:52:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_attach [2019-10-15 00:52:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create_persistent [2019-10-15 00:52:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_remove_persistent [2019-10-15 00:52:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_ioctl [2019-10-15 00:52:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_init [2019-10-15 00:52:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_exit [2019-10-15 00:52:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2019-10-15 00:52:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:52:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:52:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:52:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:52:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:52:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 00:52:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 00:52:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 00:52:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-15 00:52:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-15 00:52:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-15 00:52:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:52:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 00:52:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:52:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:52:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:52:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:52:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:52:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:52:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:52:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:52:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:52:52,145 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:52:57,306 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-15 00:53:06,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:53:06,175 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:53:06,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:53:06 BoogieIcfgContainer [2019-10-15 00:53:06,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:53:06,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:53:06,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:53:06,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:53:06,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:52:47" (1/3) ... [2019-10-15 00:53:06,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0546d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:53:06, skipping insertion in model container [2019-10-15 00:53:06,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:52:50" (2/3) ... [2019-10-15 00:53:06,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0546d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:53:06, skipping insertion in model container [2019-10-15 00:53:06,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:53:06" (3/3) ... [2019-10-15 00:53:06,190 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-15 00:53:06,207 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:53:06,224 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:53:06,243 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:53:06,283 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:53:06,283 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:53:06,283 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:53:06,284 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:53:06,284 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:53:06,284 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:53:06,284 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:53:06,284 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:53:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states. [2019-10-15 00:53:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-15 00:53:06,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:06,347 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-15 00:53:06,351 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:06,360 INFO L82 PathProgramCache]: Analyzing trace with hash 782312476, now seen corresponding path program 1 times [2019-10-15 00:53:06,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:06,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808479109] [2019-10-15 00:53:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:06,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-15 00:53:07,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808479109] [2019-10-15 00:53:07,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:07,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:07,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444344701] [2019-10-15 00:53:07,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:07,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:07,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:07,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:07,238 INFO L87 Difference]: Start difference. First operand 823 states. Second operand 3 states. [2019-10-15 00:53:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:07,600 INFO L93 Difference]: Finished difference Result 2356 states and 3094 transitions. [2019-10-15 00:53:07,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:07,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-10-15 00:53:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:07,642 INFO L225 Difference]: With dead ends: 2356 [2019-10-15 00:53:07,642 INFO L226 Difference]: Without dead ends: 1549 [2019-10-15 00:53:07,655 INFO L600 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 [2019-10-15 00:53:07,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2019-10-15 00:53:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1546. [2019-10-15 00:53:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1546 states. [2019-10-15 00:53:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2005 transitions. [2019-10-15 00:53:07,865 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2005 transitions. Word has length 109 [2019-10-15 00:53:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:07,866 INFO L462 AbstractCegarLoop]: Abstraction has 1546 states and 2005 transitions. [2019-10-15 00:53:07,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2005 transitions. [2019-10-15 00:53:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 00:53:07,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:07,872 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-15 00:53:07,872 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:07,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:07,872 INFO L82 PathProgramCache]: Analyzing trace with hash -235274702, now seen corresponding path program 1 times [2019-10-15 00:53:07,873 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:07,873 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131767618] [2019-10-15 00:53:07,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:07,874 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:07,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-15 00:53:08,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131767618] [2019-10-15 00:53:08,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:08,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:53:08,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620834815] [2019-10-15 00:53:08,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:53:08,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:53:08,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:53:08,092 INFO L87 Difference]: Start difference. First operand 1546 states and 2005 transitions. Second operand 5 states. [2019-10-15 00:53:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:08,260 INFO L93 Difference]: Finished difference Result 3061 states and 3970 transitions. [2019-10-15 00:53:08,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:53:08,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2019-10-15 00:53:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:08,272 INFO L225 Difference]: With dead ends: 3061 [2019-10-15 00:53:08,272 INFO L226 Difference]: Without dead ends: 1545 [2019-10-15 00:53:08,278 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:53:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2019-10-15 00:53:08,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1545. [2019-10-15 00:53:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2019-10-15 00:53:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2001 transitions. [2019-10-15 00:53:08,355 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2001 transitions. Word has length 113 [2019-10-15 00:53:08,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:08,356 INFO L462 AbstractCegarLoop]: Abstraction has 1545 states and 2001 transitions. [2019-10-15 00:53:08,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:53:08,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2001 transitions. [2019-10-15 00:53:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 00:53:08,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:08,361 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-15 00:53:08,361 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:08,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1684277010, now seen corresponding path program 1 times [2019-10-15 00:53:08,362 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:08,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246164428] [2019-10-15 00:53:08,362 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:08,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:08,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-15 00:53:08,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246164428] [2019-10-15 00:53:08,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:08,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:08,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926256516] [2019-10-15 00:53:08,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:08,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:08,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:08,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:08,580 INFO L87 Difference]: Start difference. First operand 1545 states and 2001 transitions. Second operand 3 states. [2019-10-15 00:53:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:08,735 INFO L93 Difference]: Finished difference Result 2818 states and 3634 transitions. [2019-10-15 00:53:08,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:08,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-15 00:53:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:08,747 INFO L225 Difference]: With dead ends: 2818 [2019-10-15 00:53:08,748 INFO L226 Difference]: Without dead ends: 1303 [2019-10-15 00:53:08,757 INFO L600 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 [2019-10-15 00:53:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2019-10-15 00:53:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1303. [2019-10-15 00:53:08,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1303 states. [2019-10-15 00:53:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1669 transitions. [2019-10-15 00:53:08,822 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1669 transitions. Word has length 125 [2019-10-15 00:53:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:08,824 INFO L462 AbstractCegarLoop]: Abstraction has 1303 states and 1669 transitions. [2019-10-15 00:53:08,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:08,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1669 transitions. [2019-10-15 00:53:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 00:53:08,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:08,829 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:08,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:08,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:08,830 INFO L82 PathProgramCache]: Analyzing trace with hash 840124973, now seen corresponding path program 1 times [2019-10-15 00:53:08,830 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:08,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202248888] [2019-10-15 00:53:08,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:08,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:08,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2019-10-15 00:53:09,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202248888] [2019-10-15 00:53:09,080 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:09,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:09,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806610630] [2019-10-15 00:53:09,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:09,081 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:09,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:09,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:09,082 INFO L87 Difference]: Start difference. First operand 1303 states and 1669 transitions. Second operand 3 states. [2019-10-15 00:53:09,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:09,189 INFO L93 Difference]: Finished difference Result 3846 states and 4956 transitions. [2019-10-15 00:53:09,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:09,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-15 00:53:09,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:09,205 INFO L225 Difference]: With dead ends: 3846 [2019-10-15 00:53:09,206 INFO L226 Difference]: Without dead ends: 2563 [2019-10-15 00:53:09,212 INFO L600 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 [2019-10-15 00:53:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2019-10-15 00:53:09,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2559. [2019-10-15 00:53:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2559 states. [2019-10-15 00:53:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3287 transitions. [2019-10-15 00:53:09,325 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3287 transitions. Word has length 127 [2019-10-15 00:53:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:09,326 INFO L462 AbstractCegarLoop]: Abstraction has 2559 states and 3287 transitions. [2019-10-15 00:53:09,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3287 transitions. [2019-10-15 00:53:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 00:53:09,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:09,332 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-15 00:53:09,332 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2088476353, now seen corresponding path program 1 times [2019-10-15 00:53:09,333 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:09,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318801723] [2019-10-15 00:53:09,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:09,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:09,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-15 00:53:09,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318801723] [2019-10-15 00:53:09,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:09,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:53:09,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175235930] [2019-10-15 00:53:09,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:53:09,555 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:53:09,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:53:09,555 INFO L87 Difference]: Start difference. First operand 2559 states and 3287 transitions. Second operand 3 states. [2019-10-15 00:53:09,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:09,719 INFO L93 Difference]: Finished difference Result 5083 states and 6560 transitions. [2019-10-15 00:53:09,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:53:09,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-15 00:53:09,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:09,738 INFO L225 Difference]: With dead ends: 5083 [2019-10-15 00:53:09,739 INFO L226 Difference]: Without dead ends: 2554 [2019-10-15 00:53:09,750 INFO L600 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 [2019-10-15 00:53:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2019-10-15 00:53:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2521. [2019-10-15 00:53:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2019-10-15 00:53:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3276 transitions. [2019-10-15 00:53:09,878 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3276 transitions. Word has length 172 [2019-10-15 00:53:09,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:09,879 INFO L462 AbstractCegarLoop]: Abstraction has 2521 states and 3276 transitions. [2019-10-15 00:53:09,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:53:09,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3276 transitions. [2019-10-15 00:53:09,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 00:53:09,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:09,888 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:09,888 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:09,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:09,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1529430770, now seen corresponding path program 1 times [2019-10-15 00:53:09,889 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:09,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678868990] [2019-10-15 00:53:09,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:09,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:09,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2019-10-15 00:53:10,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678868990] [2019-10-15 00:53:10,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:53:10,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:53:10,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650658361] [2019-10-15 00:53:10,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:53:10,171 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:10,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:53:10,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:53:10,172 INFO L87 Difference]: Start difference. First operand 2521 states and 3276 transitions. Second operand 4 states. [2019-10-15 00:53:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:14,886 INFO L93 Difference]: Finished difference Result 4610 states and 5995 transitions. [2019-10-15 00:53:14,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:53:14,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2019-10-15 00:53:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:14,903 INFO L225 Difference]: With dead ends: 4610 [2019-10-15 00:53:14,903 INFO L226 Difference]: Without dead ends: 2527 [2019-10-15 00:53:14,911 INFO L600 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 [2019-10-15 00:53:14,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2019-10-15 00:53:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2525. [2019-10-15 00:53:15,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2019-10-15 00:53:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3280 transitions. [2019-10-15 00:53:15,028 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3280 transitions. Word has length 190 [2019-10-15 00:53:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:15,029 INFO L462 AbstractCegarLoop]: Abstraction has 2525 states and 3280 transitions. [2019-10-15 00:53:15,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:53:15,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3280 transitions. [2019-10-15 00:53:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 00:53:15,037 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:15,038 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:15,038 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:15,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1754850679, now seen corresponding path program 1 times [2019-10-15 00:53:15,042 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:15,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109775613] [2019-10-15 00:53:15,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:15,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:15,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-15 00:53:15,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109775613] [2019-10-15 00:53:15,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709476719] [2019-10-15 00:53:15,612 INFO L94 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 [2019-10-15 00:53:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:16,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 00:53:16,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:53:16,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-15 00:53:16,879 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:53:17,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:17,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-15 00:53:17,264 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 00:53:17,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 12 [2019-10-15 00:53:17,265 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790765236] [2019-10-15 00:53:17,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 00:53:17,266 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:53:17,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 00:53:17,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-15 00:53:17,266 INFO L87 Difference]: Start difference. First operand 2525 states and 3280 transitions. Second operand 9 states. [2019-10-15 00:53:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:53:17,507 INFO L93 Difference]: Finished difference Result 5043 states and 6604 transitions. [2019-10-15 00:53:17,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 00:53:17,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2019-10-15 00:53:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:53:17,523 INFO L225 Difference]: With dead ends: 5043 [2019-10-15 00:53:17,523 INFO L226 Difference]: Without dead ends: 2535 [2019-10-15 00:53:17,535 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 390 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2019-10-15 00:53:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2019-10-15 00:53:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2535. [2019-10-15 00:53:17,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2535 states. [2019-10-15 00:53:17,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3290 transitions. [2019-10-15 00:53:17,648 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3290 transitions. Word has length 199 [2019-10-15 00:53:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:53:17,649 INFO L462 AbstractCegarLoop]: Abstraction has 2535 states and 3290 transitions. [2019-10-15 00:53:17,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 00:53:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3290 transitions. [2019-10-15 00:53:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 00:53:17,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:53:17,657 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:53:17,858 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:53:17,858 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:53:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:53:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1370665861, now seen corresponding path program 1 times [2019-10-15 00:53:17,859 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:53:17,859 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620290550] [2019-10-15 00:53:17,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:17,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:53:17,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:53:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-10-15 00:53:18,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620290550] [2019-10-15 00:53:18,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549025436] [2019-10-15 00:53:18,399 INFO L94 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 [2019-10-15 00:53:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:53:19,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-15 00:53:19,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:53:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-10-15 00:53:19,494 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:53:19,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:19,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:19,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:53:19,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms