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-f4eb214f-m [2019-10-13 20:53:46,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:53:46,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:53:46,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:53:46,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:53:46,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:53:46,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:53:46,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:53:47,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:53:47,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:53:47,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:53:47,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:53:47,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:53:47,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:53:47,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:53:47,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:53:47,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:53:47,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:53:47,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:53:47,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:53:47,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:53:47,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:53:47,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:53:47,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:53:47,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:53:47,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:53:47,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:53:47,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:53:47,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:53:47,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:53:47,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:53:47,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:53:47,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:53:47,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:53:47,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:53:47,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:53:47,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:53:47,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:53:47,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:53:47,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:53:47,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:53:47,046 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 [2019-10-13 20:53:47,079 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:53:47,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:53:47,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:53:47,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:53:47,085 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:53:47,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:53:47,085 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:53:47,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:53:47,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:53:47,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:53:47,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:53:47,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:53:47,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:53:47,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:53:47,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:53:47,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:53:47,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:53:47,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:53:47,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:53:47,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:53:47,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:53:47,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:53:47,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:53:47,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:53:47,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:53:47,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:53:47,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:53:47,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:53:47,092 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 [2019-10-13 20:53:47,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:53:47,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:53:47,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:53:47,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:53:47,398 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:53:47,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-13 20:53:47,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1cd6a54/307c2219f0fa40a796f079646962cd1b/FLAG5b564ca2a [2019-10-13 20:53:48,294 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:53:48,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-13 20:53:48,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1cd6a54/307c2219f0fa40a796f079646962cd1b/FLAG5b564ca2a [2019-10-13 20:53:48,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1cd6a54/307c2219f0fa40a796f079646962cd1b [2019-10-13 20:53:48,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:53:48,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:53:48,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:53:48,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:53:48,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:53:48,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:48" (1/1) ... [2019-10-13 20:53:48,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64145083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:48, skipping insertion in model container [2019-10-13 20:53:48,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:48" (1/1) ... [2019-10-13 20:53:48,831 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:53:48,958 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:53:50,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:53:50,887 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:53:51,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:53:51,603 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:53:51,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51 WrapperNode [2019-10-13 20:53:51,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:53:51,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:53:51,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:53:51,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:53:51,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2019-10-13 20:53:51,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:53:51,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:53:51,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:53:51,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:53:51,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (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 [2019-10-13 20:53:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:53:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:53:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:53:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:53:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-13 20:53:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 20:53:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 20:53:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2019-10-13 20:53:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 20:53:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2019-10-13 20:53:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 20:53:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-13 20:53:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2019-10-13 20:53:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:53:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:53:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:53:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:53:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:53:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:53:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:53:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ATM_SD [2019-10-13 20:53:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2019-10-13 20:53:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2019-10-13 20:53:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2019-10-13 20:53:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2019-10-13 20:53:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_recv_control [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_open [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_proc [2019-10-13 20:53:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure find_vcc [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_attach [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create_persistent [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_remove_persistent [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_ioctl [2019-10-13 20:53:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_init [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_exit [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_3 [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_2 [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_5 [2019-10-13 20:53:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_7 [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_8 [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_9 [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:53:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 20:53:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:53:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2019-10-13 20:53:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_init_aal5 [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_atm_ioctl [2019-10-13 20:53:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure register_atm_ioctl [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 20:53:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_insert_socket [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:53:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:53:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 20:53:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:53:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-13 20:53:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2019-10-13 20:53:51,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_9 [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 20:53:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:53:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:53:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:53:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_3 [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_2 [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 20:53:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:53:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure ATM_SD [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_7 [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2019-10-13 20:53:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_5 [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_8 [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_insert_socket [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:53:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure register_atm_ioctl [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_atm_ioctl [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure atm_init_aal5 [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:53:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_recv_control [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_open [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_proc [2019-10-13 20:53:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure find_vcc [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_attach [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create_persistent [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_remove_persistent [2019-10-13 20:53:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_ioctl [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_init [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_exit [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:53:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 20:53:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:53:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:53:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:53:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:53:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:53:52,730 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:53:57,612 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 20:54:06,399 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:54:06,399 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:54:06,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:06 BoogieIcfgContainer [2019-10-13 20:54:06,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:54:06,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:54:06,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:54:06,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:54:06,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:53:48" (1/3) ... [2019-10-13 20:54:06,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d4a4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:06, skipping insertion in model container [2019-10-13 20:54:06,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (2/3) ... [2019-10-13 20:54:06,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d4a4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:06, skipping insertion in model container [2019-10-13 20:54:06,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:06" (3/3) ... [2019-10-13 20:54:06,409 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-13 20:54:06,419 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:54:06,429 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:54:06,442 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:54:06,481 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:54:06,481 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:54:06,481 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:54:06,482 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:54:06,482 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:54:06,482 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:54:06,490 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:54:06,490 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:54:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states. [2019-10-13 20:54:06,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 20:54:06,564 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:06,565 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] [2019-10-13 20:54:06,568 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:06,575 INFO L82 PathProgramCache]: Analyzing trace with hash 782312476, now seen corresponding path program 1 times [2019-10-13 20:54:06,585 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:06,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099424916] [2019-10-13 20:54:06,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:06,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:06,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-13 20:54:07,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099424916] [2019-10-13 20:54:07,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:07,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:07,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868833111] [2019-10-13 20:54:07,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:07,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:07,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:07,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:07,443 INFO L87 Difference]: Start difference. First operand 823 states. Second operand 3 states. [2019-10-13 20:54:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:07,777 INFO L93 Difference]: Finished difference Result 2356 states and 3094 transitions. [2019-10-13 20:54:07,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:07,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-10-13 20:54:07,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:07,818 INFO L225 Difference]: With dead ends: 2356 [2019-10-13 20:54:07,818 INFO L226 Difference]: Without dead ends: 1549 [2019-10-13 20:54:07,839 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 [2019-10-13 20:54:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2019-10-13 20:54:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1546. [2019-10-13 20:54:08,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1546 states. [2019-10-13 20:54:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2005 transitions. [2019-10-13 20:54:08,072 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2005 transitions. Word has length 109 [2019-10-13 20:54:08,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:08,073 INFO L462 AbstractCegarLoop]: Abstraction has 1546 states and 2005 transitions. [2019-10-13 20:54:08,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:08,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2005 transitions. [2019-10-13 20:54:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 20:54:08,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:08,079 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] [2019-10-13 20:54:08,080 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:08,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:08,080 INFO L82 PathProgramCache]: Analyzing trace with hash -235274702, now seen corresponding path program 1 times [2019-10-13 20:54:08,080 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:08,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173079848] [2019-10-13 20:54:08,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-13 20:54:08,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173079848] [2019-10-13 20:54:08,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:08,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:54:08,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5744550] [2019-10-13 20:54:08,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:54:08,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:08,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:54:08,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:54:08,338 INFO L87 Difference]: Start difference. First operand 1546 states and 2005 transitions. Second operand 5 states. [2019-10-13 20:54:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:08,492 INFO L93 Difference]: Finished difference Result 3061 states and 3970 transitions. [2019-10-13 20:54:08,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:54:08,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2019-10-13 20:54:08,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:08,506 INFO L225 Difference]: With dead ends: 3061 [2019-10-13 20:54:08,506 INFO L226 Difference]: Without dead ends: 1545 [2019-10-13 20:54:08,513 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 [2019-10-13 20:54:08,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2019-10-13 20:54:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1545. [2019-10-13 20:54:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2019-10-13 20:54:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2001 transitions. [2019-10-13 20:54:08,591 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2001 transitions. Word has length 113 [2019-10-13 20:54:08,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:08,592 INFO L462 AbstractCegarLoop]: Abstraction has 1545 states and 2001 transitions. [2019-10-13 20:54:08,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:54:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2001 transitions. [2019-10-13 20:54:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 20:54:08,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:08,596 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] [2019-10-13 20:54:08,596 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:08,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:08,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1684277010, now seen corresponding path program 1 times [2019-10-13 20:54:08,597 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:08,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067098297] [2019-10-13 20:54:08,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-13 20:54:08,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067098297] [2019-10-13 20:54:08,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:08,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:08,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944055520] [2019-10-13 20:54:08,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:08,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:08,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:08,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:08,787 INFO L87 Difference]: Start difference. First operand 1545 states and 2001 transitions. Second operand 3 states. [2019-10-13 20:54:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:08,882 INFO L93 Difference]: Finished difference Result 2818 states and 3634 transitions. [2019-10-13 20:54:08,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:08,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-13 20:54:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:08,891 INFO L225 Difference]: With dead ends: 2818 [2019-10-13 20:54:08,892 INFO L226 Difference]: Without dead ends: 1303 [2019-10-13 20:54:08,898 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 [2019-10-13 20:54:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2019-10-13 20:54:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1303. [2019-10-13 20:54:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1303 states. [2019-10-13 20:54:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1669 transitions. [2019-10-13 20:54:08,960 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1669 transitions. Word has length 125 [2019-10-13 20:54:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:08,960 INFO L462 AbstractCegarLoop]: Abstraction has 1303 states and 1669 transitions. [2019-10-13 20:54:08,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1669 transitions. [2019-10-13 20:54:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 20:54:08,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:08,963 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] [2019-10-13 20:54:08,964 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:08,964 INFO L82 PathProgramCache]: Analyzing trace with hash 840124973, now seen corresponding path program 1 times [2019-10-13 20:54:08,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:08,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134423987] [2019-10-13 20:54:08,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:08,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2019-10-13 20:54:09,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134423987] [2019-10-13 20:54:09,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:09,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:09,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045732628] [2019-10-13 20:54:09,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:09,235 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:09,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:09,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:09,236 INFO L87 Difference]: Start difference. First operand 1303 states and 1669 transitions. Second operand 3 states. [2019-10-13 20:54:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:09,351 INFO L93 Difference]: Finished difference Result 3846 states and 4956 transitions. [2019-10-13 20:54:09,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:09,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-13 20:54:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:09,369 INFO L225 Difference]: With dead ends: 3846 [2019-10-13 20:54:09,369 INFO L226 Difference]: Without dead ends: 2563 [2019-10-13 20:54:09,375 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 [2019-10-13 20:54:09,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2019-10-13 20:54:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2559. [2019-10-13 20:54:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2559 states. [2019-10-13 20:54:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3287 transitions. [2019-10-13 20:54:09,505 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3287 transitions. Word has length 127 [2019-10-13 20:54:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:09,506 INFO L462 AbstractCegarLoop]: Abstraction has 2559 states and 3287 transitions. [2019-10-13 20:54:09,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3287 transitions. [2019-10-13 20:54:09,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 20:54:09,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:09,512 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] [2019-10-13 20:54:09,512 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:09,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2088476353, now seen corresponding path program 1 times [2019-10-13 20:54:09,513 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:09,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791799043] [2019-10-13 20:54:09,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:09,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:09,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-10-13 20:54:09,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791799043] [2019-10-13 20:54:09,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:09,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:09,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302326425] [2019-10-13 20:54:09,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:09,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:09,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:09,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:09,689 INFO L87 Difference]: Start difference. First operand 2559 states and 3287 transitions. Second operand 3 states. [2019-10-13 20:54:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:09,842 INFO L93 Difference]: Finished difference Result 5083 states and 6560 transitions. [2019-10-13 20:54:09,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:09,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-13 20:54:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:09,860 INFO L225 Difference]: With dead ends: 5083 [2019-10-13 20:54:09,860 INFO L226 Difference]: Without dead ends: 2554 [2019-10-13 20:54:09,870 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 [2019-10-13 20:54:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2019-10-13 20:54:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2521. [2019-10-13 20:54:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2019-10-13 20:54:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3276 transitions. [2019-10-13 20:54:10,007 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3276 transitions. Word has length 172 [2019-10-13 20:54:10,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:10,008 INFO L462 AbstractCegarLoop]: Abstraction has 2521 states and 3276 transitions. [2019-10-13 20:54:10,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3276 transitions. [2019-10-13 20:54:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 20:54:10,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:10,018 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] [2019-10-13 20:54:10,018 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:10,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1529430770, now seen corresponding path program 1 times [2019-10-13 20:54:10,019 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:10,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901873661] [2019-10-13 20:54:10,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:10,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:10,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2019-10-13 20:54:10,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901873661] [2019-10-13 20:54:10,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:10,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:54:10,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675031452] [2019-10-13 20:54:10,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:54:10,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:10,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:54:10,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:54:10,353 INFO L87 Difference]: Start difference. First operand 2521 states and 3276 transitions. Second operand 4 states. [2019-10-13 20:54:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:15,198 INFO L93 Difference]: Finished difference Result 4610 states and 5995 transitions. [2019-10-13 20:54:15,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:54:15,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2019-10-13 20:54:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:15,219 INFO L225 Difference]: With dead ends: 4610 [2019-10-13 20:54:15,219 INFO L226 Difference]: Without dead ends: 2527 [2019-10-13 20:54:15,229 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 [2019-10-13 20:54:15,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2019-10-13 20:54:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2525. [2019-10-13 20:54:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2019-10-13 20:54:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3280 transitions. [2019-10-13 20:54:15,384 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3280 transitions. Word has length 190 [2019-10-13 20:54:15,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:15,384 INFO L462 AbstractCegarLoop]: Abstraction has 2525 states and 3280 transitions. [2019-10-13 20:54:15,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:54:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3280 transitions. [2019-10-13 20:54:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 20:54:15,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:15,397 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, 1] [2019-10-13 20:54:15,397 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:15,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:15,398 INFO L82 PathProgramCache]: Analyzing trace with hash 326525594, now seen corresponding path program 1 times [2019-10-13 20:54:15,398 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:15,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460200944] [2019-10-13 20:54:15,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:15,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:15,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-13 20:54:15,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460200944] [2019-10-13 20:54:15,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371037372] [2019-10-13 20:54:15,769 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 [2019-10-13 20:54:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:16,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 20:54:16,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:54:16,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 20:54:16,892 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:54:17,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:17,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-13 20:54:17,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 20:54:17,271 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-10-13 20:54:17,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417350763] [2019-10-13 20:54:17,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:54:17,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:17,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:54:17,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-13 20:54:17,274 INFO L87 Difference]: Start difference. First operand 2525 states and 3280 transitions. Second operand 6 states. [2019-10-13 20:54:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:17,512 INFO L93 Difference]: Finished difference Result 5038 states and 6598 transitions. [2019-10-13 20:54:17,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:54:17,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2019-10-13 20:54:17,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:17,531 INFO L225 Difference]: With dead ends: 5038 [2019-10-13 20:54:17,531 INFO L226 Difference]: Without dead ends: 2530 [2019-10-13 20:54:17,548 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 392 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-10-13 20:54:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2019-10-13 20:54:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2530. [2019-10-13 20:54:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2530 states. [2019-10-13 20:54:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3285 transitions. [2019-10-13 20:54:17,748 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3285 transitions. Word has length 200 [2019-10-13 20:54:17,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:17,748 INFO L462 AbstractCegarLoop]: Abstraction has 2530 states and 3285 transitions. [2019-10-13 20:54:17,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:54:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3285 transitions. [2019-10-13 20:54:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 20:54:17,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:17,763 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:54:17,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:54:17,976 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:17,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1363588149, now seen corresponding path program 1 times [2019-10-13 20:54:17,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:17,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011710184] [2019-10-13 20:54:17,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:17,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:17,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2019-10-13 20:54:18,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011710184] [2019-10-13 20:54:18,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959479231] [2019-10-13 20:54:18,483 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 [2019-10-13 20:54:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:19,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 20:54:19,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:54:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-10-13 20:54:19,663 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:54:19,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:19,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:19,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:19,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms