java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:44:35,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:44:35,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:44:35,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:44:35,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:44:35,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:44:35,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:44:35,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:44:35,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:44:35,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:44:35,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:44:35,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:44:35,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:44:35,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:44:35,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:44:35,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:44:35,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:44:35,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:44:35,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:44:35,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:44:35,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:44:35,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:44:35,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:44:35,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:44:35,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:44:35,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:44:35,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:44:35,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:44:35,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:44:35,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:44:35,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:44:35,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:44:35,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:44:35,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:44:35,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:44:35,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:44:35,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:44:35,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:44:35,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:44:35,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:44:35,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:44:35,329 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 22:44:35,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:44:35,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:44:35,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:44:35,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:44:35,345 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:44:35,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:44:35,345 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:44:35,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:44:35,346 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:44:35,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:44:35,347 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:44:35,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:44:35,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:44:35,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:44:35,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:44:35,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:44:35,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:44:35,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:44:35,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:44:35,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:44:35,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:44:35,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:44:35,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:44:35,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:44:35,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:44:35,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:44:35,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:44:35,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:44:35,647 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:44:35,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-13 22:44:35,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656fa527e/681e996405b0448f87c38ceb54932bbd/FLAG9cbdceaa2 [2019-10-13 22:44:36,490 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:44:36,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-10-13 22:44:36,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656fa527e/681e996405b0448f87c38ceb54932bbd/FLAG9cbdceaa2 [2019-10-13 22:44:37,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656fa527e/681e996405b0448f87c38ceb54932bbd [2019-10-13 22:44:37,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:44:37,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:44:37,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:44:37,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:44:37,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:44:37,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:44:37" (1/1) ... [2019-10-13 22:44:37,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22940204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:37, skipping insertion in model container [2019-10-13 22:44:37,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:44:37" (1/1) ... [2019-10-13 22:44:37,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:44:37,175 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:44:38,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:44:38,945 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:44:39,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:44:39,530 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:44:39,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39 WrapperNode [2019-10-13 22:44:39,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:44:39,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:44:39,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:44:39,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:44:39,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (1/1) ... [2019-10-13 22:44:39,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:44:39,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:44:39,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:44:39,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:44:39,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (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 22:44:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:44:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:44:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:44:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:44:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-13 22:44:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:44:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 22:44:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2019-10-13 22:44:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:44:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 22:44:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-13 22:44:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 22:44:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-13 22:44:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:44:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2019-10-13 22:44:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 22:44:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-13 22:44:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2019-10-13 22:44:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:44:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:44:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:44:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:44:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:44:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:44:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-13 22:44:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-13 22:44:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ATM_SD [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2019-10-13 22:44:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_recv_control [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_open [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2019-10-13 22:44:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_proc [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure find_vcc [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_attach [2019-10-13 22:44:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create_persistent [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_remove_persistent [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_ioctl [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_init [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_exit [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_3 [2019-10-13 22:44:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_2 [2019-10-13 22:44:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:44:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_5 [2019-10-13 22:44:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-13 22:44:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_7 [2019-10-13 22:44:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_8 [2019-10-13 22:44:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_9 [2019-10-13 22:44:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:44:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 22:44:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 22:44:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 22:44:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 22:44:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:44:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-13 22:44:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:44:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 22:44:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:44:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2019-10-13 22:44:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2019-10-13 22:44:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_init_aal5 [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_atm_ioctl [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2019-10-13 22:44:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure register_atm_ioctl [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 22:44:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_insert_socket [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:44:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:44:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:44:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:44:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:44:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 22:44:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2019-10-13 22:44:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:44:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 22:44:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-13 22:44:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 22:44:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-13 22:44:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:44:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 22:44:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:44:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:44:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:44:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:44:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:44:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 22:44:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2019-10-13 22:44:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 22:44:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-13 22:44:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-13 22:44:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-13 22:44:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-13 22:44:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-13 22:44:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-13 22:44:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:44:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2019-10-13 22:44:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2019-10-13 22:44:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:44:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:44:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 22:44:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_9 [2019-10-13 22:44:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:44:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:44:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:44:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:44:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:44:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:44:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:44:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:44:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:44:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:44:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:44:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_3 [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_2 [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 22:44:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2019-10-13 22:44:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure ATM_SD [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_7 [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2019-10-13 22:44:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_5 [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_8 [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_insert_socket [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2019-10-13 22:44:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure register_atm_ioctl [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_atm_ioctl [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure atm_init_aal5 [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_recv_control [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2019-10-13 22:44:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_open [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_proc [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure find_vcc [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2019-10-13 22:44:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_attach [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create_persistent [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_remove_persistent [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_ioctl [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_init [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_exit [2019-10-13 22:44:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:44:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:44:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:44:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:44:40,733 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:44:45,595 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 22:44:55,749 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:44:55,749 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:44:55,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:44:55 BoogieIcfgContainer [2019-10-13 22:44:55,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:44:55,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:44:55,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:44:55,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:44:55,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:44:37" (1/3) ... [2019-10-13 22:44:55,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370c815c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:44:55, skipping insertion in model container [2019-10-13 22:44:55,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:44:39" (2/3) ... [2019-10-13 22:44:55,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370c815c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:44:55, skipping insertion in model container [2019-10-13 22:44:55,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:44:55" (3/3) ... [2019-10-13 22:44:55,765 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 22:44:55,775 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:44:55,794 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:44:55,805 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:44:55,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:44:55,848 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:44:55,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:44:55,848 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:44:55,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:44:55,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:44:55,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:44:55,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:44:55,885 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states. [2019-10-13 22:44:55,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 22:44:55,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:55,900 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:55,902 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:55,909 INFO L82 PathProgramCache]: Analyzing trace with hash 44885906, now seen corresponding path program 1 times [2019-10-13 22:44:55,919 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:55,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119882826] [2019-10-13 22:44:55,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:55,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:55,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 22:44:56,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119882826] [2019-10-13 22:44:56,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:56,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:44:56,598 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629934059] [2019-10-13 22:44:56,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:44:56,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:56,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:44:56,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:44:56,623 INFO L87 Difference]: Start difference. First operand 695 states. Second operand 3 states. [2019-10-13 22:44:56,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:44:56,938 INFO L93 Difference]: Finished difference Result 1985 states and 2621 transitions. [2019-10-13 22:44:56,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:44:56,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-10-13 22:44:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:44:56,991 INFO L225 Difference]: With dead ends: 1985 [2019-10-13 22:44:56,991 INFO L226 Difference]: Without dead ends: 1304 [2019-10-13 22:44:57,000 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 22:44:57,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-10-13 22:44:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1301. [2019-10-13 22:44:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-10-13 22:44:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1692 transitions. [2019-10-13 22:44:57,209 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1692 transitions. Word has length 91 [2019-10-13 22:44:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:44:57,210 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1692 transitions. [2019-10-13 22:44:57,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:44:57,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1692 transitions. [2019-10-13 22:44:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 22:44:57,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:57,218 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:57,221 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:57,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1137181633, now seen corresponding path program 1 times [2019-10-13 22:44:57,222 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:57,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709882157] [2019-10-13 22:44:57,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:57,223 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:57,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:57,508 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 22:44:57,509 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709882157] [2019-10-13 22:44:57,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:57,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:44:57,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914796056] [2019-10-13 22:44:57,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:44:57,511 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:57,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:44:57,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:44:57,512 INFO L87 Difference]: Start difference. First operand 1301 states and 1692 transitions. Second operand 5 states. [2019-10-13 22:44:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:44:57,673 INFO L93 Difference]: Finished difference Result 1306 states and 1696 transitions. [2019-10-13 22:44:57,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:44:57,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2019-10-13 22:44:57,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:44:57,689 INFO L225 Difference]: With dead ends: 1306 [2019-10-13 22:44:57,690 INFO L226 Difference]: Without dead ends: 1301 [2019-10-13 22:44:57,691 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 22:44:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2019-10-13 22:44:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2019-10-13 22:44:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-10-13 22:44:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1691 transitions. [2019-10-13 22:44:57,792 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1691 transitions. Word has length 93 [2019-10-13 22:44:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:44:57,793 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1691 transitions. [2019-10-13 22:44:57,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:44:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1691 transitions. [2019-10-13 22:44:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-13 22:44:57,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:57,811 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:57,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:57,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:57,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1841284351, now seen corresponding path program 1 times [2019-10-13 22:44:57,812 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:57,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171019376] [2019-10-13 22:44:57,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:57,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:57,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 22:44:58,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171019376] [2019-10-13 22:44:58,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:58,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:44:58,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458496085] [2019-10-13 22:44:58,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:44:58,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:44:58,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:44:58,029 INFO L87 Difference]: Start difference. First operand 1301 states and 1691 transitions. Second operand 3 states. [2019-10-13 22:44:58,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:44:58,137 INFO L93 Difference]: Finished difference Result 2366 states and 3060 transitions. [2019-10-13 22:44:58,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:44:58,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-10-13 22:44:58,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:44:58,146 INFO L225 Difference]: With dead ends: 2366 [2019-10-13 22:44:58,147 INFO L226 Difference]: Without dead ends: 1093 [2019-10-13 22:44:58,153 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 22:44:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-10-13 22:44:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-10-13 22:44:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-10-13 22:44:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1403 transitions. [2019-10-13 22:44:58,224 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1403 transitions. Word has length 105 [2019-10-13 22:44:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:44:58,229 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 1403 transitions. [2019-10-13 22:44:58,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:44:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1403 transitions. [2019-10-13 22:44:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 22:44:58,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:58,243 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:58,243 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:58,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:58,244 INFO L82 PathProgramCache]: Analyzing trace with hash -979085374, now seen corresponding path program 1 times [2019-10-13 22:44:58,244 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:58,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121446239] [2019-10-13 22:44:58,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:58,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:58,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 22:44:58,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121446239] [2019-10-13 22:44:58,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:58,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:44:58,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636648223] [2019-10-13 22:44:58,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:44:58,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:58,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:44:58,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:44:58,547 INFO L87 Difference]: Start difference. First operand 1093 states and 1403 transitions. Second operand 3 states. [2019-10-13 22:44:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:44:58,669 INFO L93 Difference]: Finished difference Result 3214 states and 4156 transitions. [2019-10-13 22:44:58,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:44:58,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-10-13 22:44:58,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:44:58,684 INFO L225 Difference]: With dead ends: 3214 [2019-10-13 22:44:58,684 INFO L226 Difference]: Without dead ends: 2140 [2019-10-13 22:44:58,692 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 22:44:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-10-13 22:44:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2128. [2019-10-13 22:44:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2019-10-13 22:44:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2740 transitions. [2019-10-13 22:44:58,822 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2740 transitions. Word has length 106 [2019-10-13 22:44:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:44:58,822 INFO L462 AbstractCegarLoop]: Abstraction has 2128 states and 2740 transitions. [2019-10-13 22:44:58,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:44:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2740 transitions. [2019-10-13 22:44:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 22:44:58,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:58,829 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:58,829 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1552343330, now seen corresponding path program 1 times [2019-10-13 22:44:58,830 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:58,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677654253] [2019-10-13 22:44:58,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:58,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:58,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 22:44:59,049 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677654253] [2019-10-13 22:44:59,050 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:59,050 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:44:59,050 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078717024] [2019-10-13 22:44:59,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:44:59,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:59,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:44:59,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:44:59,053 INFO L87 Difference]: Start difference. First operand 2128 states and 2740 transitions. Second operand 3 states. [2019-10-13 22:44:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:44:59,274 INFO L93 Difference]: Finished difference Result 4206 states and 5440 transitions. [2019-10-13 22:44:59,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:44:59,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 22:44:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:44:59,294 INFO L225 Difference]: With dead ends: 4206 [2019-10-13 22:44:59,294 INFO L226 Difference]: Without dead ends: 2106 [2019-10-13 22:44:59,309 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 22:44:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2019-10-13 22:44:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2080. [2019-10-13 22:44:59,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-13 22:44:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2708 transitions. [2019-10-13 22:44:59,508 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2708 transitions. Word has length 144 [2019-10-13 22:44:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:44:59,509 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2708 transitions. [2019-10-13 22:44:59,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:44:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2708 transitions. [2019-10-13 22:44:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 22:44:59,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:44:59,520 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:44:59,520 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:44:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:44:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash 963603630, now seen corresponding path program 1 times [2019-10-13 22:44:59,521 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:44:59,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996629875] [2019-10-13 22:44:59,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:59,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:44:59,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:44:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:44:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-13 22:44:59,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996629875] [2019-10-13 22:44:59,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:44:59,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:44:59,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514814312] [2019-10-13 22:44:59,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:44:59,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:44:59,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:44:59,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:44:59,966 INFO L87 Difference]: Start difference. First operand 2080 states and 2708 transitions. Second operand 4 states. [2019-10-13 22:45:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:04,777 INFO L93 Difference]: Finished difference Result 3805 states and 4959 transitions. [2019-10-13 22:45:04,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:45:04,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-10-13 22:45:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:04,796 INFO L225 Difference]: With dead ends: 3805 [2019-10-13 22:45:04,796 INFO L226 Difference]: Without dead ends: 2086 [2019-10-13 22:45:04,804 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 22:45:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2019-10-13 22:45:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2084. [2019-10-13 22:45:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2019-10-13 22:45:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2712 transitions. [2019-10-13 22:45:04,955 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2712 transitions. Word has length 159 [2019-10-13 22:45:04,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:04,956 INFO L462 AbstractCegarLoop]: Abstraction has 2084 states and 2712 transitions. [2019-10-13 22:45:04,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:45:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2712 transitions. [2019-10-13 22:45:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 22:45:04,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:04,964 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:45:04,964 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1006211888, now seen corresponding path program 1 times [2019-10-13 22:45:04,965 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:04,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816241816] [2019-10-13 22:45:04,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:04,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:04,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-10-13 22:45:05,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816241816] [2019-10-13 22:45:05,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549849107] [2019-10-13 22:45:05,430 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 22:45:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:06,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 2402 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 22:45:06,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:45:06,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-13 22:45:06,318 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:45:06,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:06,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-10-13 22:45:06,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 22:45:06,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-10-13 22:45:06,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978926009] [2019-10-13 22:45:06,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:45:06,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:45:06,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:45:06,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-13 22:45:06,727 INFO L87 Difference]: Start difference. First operand 2084 states and 2712 transitions. Second operand 6 states. [2019-10-13 22:45:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:45:06,939 INFO L93 Difference]: Finished difference Result 4153 states and 5459 transitions. [2019-10-13 22:45:06,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:45:06,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2019-10-13 22:45:06,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:45:06,953 INFO L225 Difference]: With dead ends: 4153 [2019-10-13 22:45:06,953 INFO L226 Difference]: Without dead ends: 2089 [2019-10-13 22:45:06,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 328 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 22:45:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2019-10-13 22:45:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2019-10-13 22:45:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2019-10-13 22:45:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2717 transitions. [2019-10-13 22:45:07,104 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2717 transitions. Word has length 168 [2019-10-13 22:45:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:45:07,105 INFO L462 AbstractCegarLoop]: Abstraction has 2089 states and 2717 transitions. [2019-10-13 22:45:07,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:45:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2717 transitions. [2019-10-13 22:45:07,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 22:45:07,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:45:07,115 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:45:07,325 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:45:07,326 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:45:07,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:45:07,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1222518359, now seen corresponding path program 1 times [2019-10-13 22:45:07,327 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:45:07,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697499343] [2019-10-13 22:45:07,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:07,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:45:07,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:45:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:07,978 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-10-13 22:45:07,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697499343] [2019-10-13 22:45:07,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883151342] [2019-10-13 22:45:07,979 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 22:45:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:45:08,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 22:45:08,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:45:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-10-13 22:45:09,081 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:45:09,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:09,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:09,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:45:09,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms