/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --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-fb55353 [2019-11-07 03:34:20,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:34:20,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:34:20,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:34:20,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:34:20,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:34:20,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:34:20,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:34:20,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:34:20,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:34:20,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:34:20,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:34:20,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:34:20,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:34:20,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:34:20,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:34:20,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:34:20,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:34:20,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:34:20,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:34:20,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:34:20,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:34:20,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:34:20,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:34:20,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:34:20,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:34:20,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:34:20,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:34:20,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:34:20,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:34:20,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:34:20,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:34:20,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:34:20,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:34:20,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:34:20,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:34:20,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:34:20,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:34:20,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:34:20,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:34:20,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:34:20,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:34:20,575 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:34:20,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:34:20,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:34:20,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:34:20,580 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:34:20,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:34:20,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:34:20,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:34:20,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:34:20,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:34:20,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:34:20,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:34:20,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:34:20,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:34:20,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:34:20,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:34:20,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:34:20,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:34:20,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:34:20,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:34:20,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:34:20,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:34:20,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:34:20,588 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 [2019-11-07 03:34:20,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:34:20,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:34:20,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:34:20,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:34:20,890 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:34:20,890 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-11-07 03:34:20,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7493be/f5b2721227254c95bd04a1da0a8e8468/FLAGf0fc74a5b [2019-11-07 03:34:21,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:34:21,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-11-07 03:34:21,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7493be/f5b2721227254c95bd04a1da0a8e8468/FLAGf0fc74a5b [2019-11-07 03:34:22,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7493be/f5b2721227254c95bd04a1da0a8e8468 [2019-11-07 03:34:22,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:34:22,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:34:22,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:34:22,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:34:22,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:34:22,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:22" (1/1) ... [2019-11-07 03:34:22,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28114301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:22, skipping insertion in model container [2019-11-07 03:34:22,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:22" (1/1) ... [2019-11-07 03:34:22,328 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:34:22,457 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:34:24,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:34:24,174 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:34:24,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:34:24,962 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:34:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24 WrapperNode [2019-11-07 03:34:24,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:34:24,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:34:24,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:34:24,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:34:24,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:24,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... [2019-11-07 03:34:25,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:34:25,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:34:25,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:34:25,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:34:25,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:34:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:34:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:34:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 03:34:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 03:34:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-11-07 03:34:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 03:34:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 03:34:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2019-11-07 03:34:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-11-07 03:34:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-11-07 03:34:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-11-07 03:34:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-11-07 03:34:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-11-07 03:34:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-11-07 03:34:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2019-11-07 03:34:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-11-07 03:34:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-11-07 03:34:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2019-11-07 03:34:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 03:34:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 03:34:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 03:34:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 03:34:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2019-11-07 03:34:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2019-11-07 03:34:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2019-11-07 03:34:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ATM_SD [2019-11-07 03:34:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2019-11-07 03:34:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_recv_control [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_open [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2019-11-07 03:34:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_proc [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure find_vcc [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2019-11-07 03:34:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_attach [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create_persistent [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_remove_persistent [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_ioctl [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_init [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_exit [2019-11-07 03:34:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_3 [2019-11-07 03:34:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_2 [2019-11-07 03:34:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:34:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_5 [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_7 [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_8 [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_9 [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 03:34:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-11-07 03:34:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-11-07 03:34:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-11-07 03:34:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-11-07 03:34:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 03:34:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-11-07 03:34:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-11-07 03:34:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-11-07 03:34:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-11-07 03:34:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2019-11-07 03:34:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2019-11-07 03:34:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2019-11-07 03:34:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_init_aal5 [2019-11-07 03:34:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-11-07 03:34:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_atm_ioctl [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 03:34:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure register_atm_ioctl [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_insert_socket [2019-11-07 03:34:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-11-07 03:34:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 03:34:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 03:34:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 03:34:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 03:34:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-07 03:34:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:34:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 03:34:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-11-07 03:34:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-07 03:34:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:34:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:34:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 03:34:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 03:34:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2019-11-07 03:34:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-11-07 03:34:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-11-07 03:34:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-11-07 03:34:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-11-07 03:34:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-11-07 03:34:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 03:34:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 03:34:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-11-07 03:34:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2019-11-07 03:34:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-11-07 03:34:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-11-07 03:34:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-11-07 03:34:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-11-07 03:34:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-11-07 03:34:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-11-07 03:34:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-11-07 03:34:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-11-07 03:34:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2019-11-07 03:34:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2019-11-07 03:34:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:34:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:34:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-11-07 03:34:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_9 [2019-11-07 03:34:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-11-07 03:34:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 03:34:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:34:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:34:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:34:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 03:34:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 03:34:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_3 [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_2 [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-11-07 03:34:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-11-07 03:34:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-11-07 03:34:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:34:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2019-11-07 03:34:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2019-11-07 03:34:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ATM_SD [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_7 [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2019-11-07 03:34:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_5 [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_8 [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_insert_socket [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure register_atm_ioctl [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_atm_ioctl [2019-11-07 03:34:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure atm_init_aal5 [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_recv_control [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_open [2019-11-07 03:34:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_proc [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure find_vcc [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_attach [2019-11-07 03:34:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create_persistent [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_remove_persistent [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_ioctl [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_init [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_exit [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 03:34:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-11-07 03:34:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:34:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 03:34:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 03:34:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-07 03:34:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-07 03:34:26,167 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 03:34:31,092 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-11-07 03:34:42,073 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:34:42,074 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:34:42,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:42 BoogieIcfgContainer [2019-11-07 03:34:42,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:34:42,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:34:42,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:34:42,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:34:42,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:34:22" (1/3) ... [2019-11-07 03:34:42,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e693ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:42, skipping insertion in model container [2019-11-07 03:34:42,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:24" (2/3) ... [2019-11-07 03:34:42,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e693ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:42, skipping insertion in model container [2019-11-07 03:34:42,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:42" (3/3) ... [2019-11-07 03:34:42,084 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2019-11-07 03:34:42,094 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:34:42,105 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:34:42,117 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:34:42,150 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:34:42,151 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:34:42,151 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:34:42,151 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:34:42,151 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:34:42,151 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:34:42,151 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:34:42,152 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:34:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states. [2019-11-07 03:34:42,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-07 03:34:42,199 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:42,200 INFO L410 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] [2019-11-07 03:34:42,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:42,209 INFO L82 PathProgramCache]: Analyzing trace with hash 44885906, now seen corresponding path program 1 times [2019-11-07 03:34:42,218 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:42,219 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313452356] [2019-11-07 03:34:42,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-11-07 03:34:42,950 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313452356] [2019-11-07 03:34:42,951 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:42,951 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:34:42,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171394306] [2019-11-07 03:34:42,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:34:42,958 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:42,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:34:42,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:34:42,975 INFO L87 Difference]: Start difference. First operand 695 states. Second operand 3 states. [2019-11-07 03:34:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:43,240 INFO L93 Difference]: Finished difference Result 1985 states and 2621 transitions. [2019-11-07 03:34:43,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:34:43,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-11-07 03:34:43,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:43,285 INFO L225 Difference]: With dead ends: 1985 [2019-11-07 03:34:43,286 INFO L226 Difference]: Without dead ends: 1304 [2019-11-07 03:34:43,300 INFO L630 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 [2019-11-07 03:34:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-11-07 03:34:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1301. [2019-11-07 03:34:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-11-07 03:34:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1692 transitions. [2019-11-07 03:34:43,527 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1692 transitions. Word has length 91 [2019-11-07 03:34:43,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:43,528 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1692 transitions. [2019-11-07 03:34:43,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:34:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1692 transitions. [2019-11-07 03:34:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-07 03:34:43,536 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:43,536 INFO L410 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] [2019-11-07 03:34:43,537 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1137181633, now seen corresponding path program 1 times [2019-11-07 03:34:43,537 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:43,538 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484426089] [2019-11-07 03:34:43,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-11-07 03:34:43,782 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484426089] [2019-11-07 03:34:43,782 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:43,783 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:34:43,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965287757] [2019-11-07 03:34:43,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:34:43,785 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:43,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:34:43,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:34:43,785 INFO L87 Difference]: Start difference. First operand 1301 states and 1692 transitions. Second operand 5 states. [2019-11-07 03:34:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:43,913 INFO L93 Difference]: Finished difference Result 1306 states and 1696 transitions. [2019-11-07 03:34:43,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 03:34:43,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2019-11-07 03:34:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:43,922 INFO L225 Difference]: With dead ends: 1306 [2019-11-07 03:34:43,923 INFO L226 Difference]: Without dead ends: 1301 [2019-11-07 03:34:43,924 INFO L630 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 [2019-11-07 03:34:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2019-11-07 03:34:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2019-11-07 03:34:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2019-11-07 03:34:43,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1691 transitions. [2019-11-07 03:34:43,994 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1691 transitions. Word has length 93 [2019-11-07 03:34:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:43,995 INFO L462 AbstractCegarLoop]: Abstraction has 1301 states and 1691 transitions. [2019-11-07 03:34:43,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:34:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1691 transitions. [2019-11-07 03:34:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-11-07 03:34:44,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:44,000 INFO L410 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] [2019-11-07 03:34:44,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1841284351, now seen corresponding path program 1 times [2019-11-07 03:34:44,001 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:44,001 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541209878] [2019-11-07 03:34:44,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-11-07 03:34:44,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541209878] [2019-11-07 03:34:44,246 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:44,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:34:44,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046312115] [2019-11-07 03:34:44,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:34:44,248 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:44,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:34:44,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:34:44,249 INFO L87 Difference]: Start difference. First operand 1301 states and 1691 transitions. Second operand 3 states. [2019-11-07 03:34:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:44,349 INFO L93 Difference]: Finished difference Result 2366 states and 3060 transitions. [2019-11-07 03:34:44,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:34:44,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-11-07 03:34:44,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:44,359 INFO L225 Difference]: With dead ends: 2366 [2019-11-07 03:34:44,360 INFO L226 Difference]: Without dead ends: 1093 [2019-11-07 03:34:44,366 INFO L630 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 [2019-11-07 03:34:44,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-11-07 03:34:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-11-07 03:34:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-11-07 03:34:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1403 transitions. [2019-11-07 03:34:44,451 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1403 transitions. Word has length 105 [2019-11-07 03:34:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:44,453 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 1403 transitions. [2019-11-07 03:34:44,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:34:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1403 transitions. [2019-11-07 03:34:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-07 03:34:44,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:44,458 INFO L410 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] [2019-11-07 03:34:44,459 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:44,461 INFO L82 PathProgramCache]: Analyzing trace with hash -979085374, now seen corresponding path program 1 times [2019-11-07 03:34:44,461 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:44,462 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755319339] [2019-11-07 03:34:44,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 03:34:44,716 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755319339] [2019-11-07 03:34:44,717 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:44,717 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:34:44,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175626489] [2019-11-07 03:34:44,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:34:44,719 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:44,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:34:44,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:34:44,720 INFO L87 Difference]: Start difference. First operand 1093 states and 1403 transitions. Second operand 3 states. [2019-11-07 03:34:44,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:44,844 INFO L93 Difference]: Finished difference Result 3214 states and 4156 transitions. [2019-11-07 03:34:44,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:34:44,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-11-07 03:34:44,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:44,864 INFO L225 Difference]: With dead ends: 3214 [2019-11-07 03:34:44,864 INFO L226 Difference]: Without dead ends: 2140 [2019-11-07 03:34:44,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:34:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-11-07 03:34:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2128. [2019-11-07 03:34:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2019-11-07 03:34:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2740 transitions. [2019-11-07 03:34:44,976 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2740 transitions. Word has length 106 [2019-11-07 03:34:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:44,976 INFO L462 AbstractCegarLoop]: Abstraction has 2128 states and 2740 transitions. [2019-11-07 03:34:44,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:34:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2740 transitions. [2019-11-07 03:34:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 03:34:44,982 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:44,982 INFO L410 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] [2019-11-07 03:34:44,983 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:44,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1552343330, now seen corresponding path program 1 times [2019-11-07 03:34:44,983 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:44,983 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068838130] [2019-11-07 03:34:44,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-11-07 03:34:45,142 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068838130] [2019-11-07 03:34:45,142 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:45,142 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:34:45,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158597191] [2019-11-07 03:34:45,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:34:45,144 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:45,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:34:45,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:34:45,145 INFO L87 Difference]: Start difference. First operand 2128 states and 2740 transitions. Second operand 3 states. [2019-11-07 03:34:45,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:45,292 INFO L93 Difference]: Finished difference Result 4206 states and 5440 transitions. [2019-11-07 03:34:45,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:34:45,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-07 03:34:45,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:45,314 INFO L225 Difference]: With dead ends: 4206 [2019-11-07 03:34:45,314 INFO L226 Difference]: Without dead ends: 2106 [2019-11-07 03:34:45,327 INFO L630 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 [2019-11-07 03:34:45,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2019-11-07 03:34:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2080. [2019-11-07 03:34:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-11-07 03:34:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2708 transitions. [2019-11-07 03:34:45,440 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2708 transitions. Word has length 144 [2019-11-07 03:34:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:45,441 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2708 transitions. [2019-11-07 03:34:45,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:34:45,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2708 transitions. [2019-11-07 03:34:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 03:34:45,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:45,448 INFO L410 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] [2019-11-07 03:34:45,448 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash 963603630, now seen corresponding path program 1 times [2019-11-07 03:34:45,449 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:45,449 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500619334] [2019-11-07 03:34:45,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-11-07 03:34:45,737 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500619334] [2019-11-07 03:34:45,737 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:34:45,737 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:34:45,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798529184] [2019-11-07 03:34:45,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:34:45,738 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:45,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:34:45,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:34:45,739 INFO L87 Difference]: Start difference. First operand 2080 states and 2708 transitions. Second operand 4 states. [2019-11-07 03:34:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:50,560 INFO L93 Difference]: Finished difference Result 3805 states and 4959 transitions. [2019-11-07 03:34:50,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:34:50,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-11-07 03:34:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:50,574 INFO L225 Difference]: With dead ends: 3805 [2019-11-07 03:34:50,574 INFO L226 Difference]: Without dead ends: 2086 [2019-11-07 03:34:50,581 INFO L630 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 [2019-11-07 03:34:50,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2019-11-07 03:34:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2084. [2019-11-07 03:34:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2019-11-07 03:34:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2712 transitions. [2019-11-07 03:34:50,697 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2712 transitions. Word has length 159 [2019-11-07 03:34:50,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:50,698 INFO L462 AbstractCegarLoop]: Abstraction has 2084 states and 2712 transitions. [2019-11-07 03:34:50,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:34:50,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2712 transitions. [2019-11-07 03:34:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-11-07 03:34:50,704 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:50,705 INFO L410 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] [2019-11-07 03:34:50,705 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:50,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1006211888, now seen corresponding path program 1 times [2019-11-07 03:34:50,706 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:50,706 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280568374] [2019-11-07 03:34:50,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-11-07 03:34:51,136 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280568374] [2019-11-07 03:34:51,136 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399671279] [2019-11-07 03:34:51,136 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 [2019-11-07 03:34:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:51,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 2402 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 03:34:52,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:34:52,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-07 03:34:52,145 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:34:52,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:52,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:52,549 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-11-07 03:34:52,550 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 03:34:52,550 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-11-07 03:34:52,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119104205] [2019-11-07 03:34:52,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 03:34:52,551 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:34:52,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 03:34:52,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-11-07 03:34:52,553 INFO L87 Difference]: Start difference. First operand 2084 states and 2712 transitions. Second operand 6 states. [2019-11-07 03:34:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:34:52,759 INFO L93 Difference]: Finished difference Result 4153 states and 5459 transitions. [2019-11-07 03:34:52,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:34:52,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2019-11-07 03:34:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:34:52,773 INFO L225 Difference]: With dead ends: 4153 [2019-11-07 03:34:52,773 INFO L226 Difference]: Without dead ends: 2089 [2019-11-07 03:34:52,783 INFO L630 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 [2019-11-07 03:34:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2019-11-07 03:34:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2019-11-07 03:34:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2019-11-07 03:34:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2717 transitions. [2019-11-07 03:34:52,895 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2717 transitions. Word has length 168 [2019-11-07 03:34:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:34:52,896 INFO L462 AbstractCegarLoop]: Abstraction has 2089 states and 2717 transitions. [2019-11-07 03:34:52,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 03:34:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2717 transitions. [2019-11-07 03:34:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-11-07 03:34:52,904 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:34:52,905 INFO L410 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] [2019-11-07 03:34:53,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:34:53,117 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:34:53,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:34:53,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1222518359, now seen corresponding path program 1 times [2019-11-07 03:34:53,118 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:34:53,118 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128783309] [2019-11-07 03:34:53,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:34:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-11-07 03:34:53,480 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128783309] [2019-11-07 03:34:53,481 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516774545] [2019-11-07 03:34:53,481 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 [2019-11-07 03:34:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:34:54,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 03:34:54,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:34:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-11-07 03:34:54,374 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:34:54,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:54,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:54,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:54,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:34:57,112 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 36 [2019-11-07 03:34:57,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 03:34:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-11-07 03:34:57,310 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [122279446] [2019-11-07 03:34:57,344 INFO L159 IcfgInterpreter]: Started Sifa with 129 locations of interest [2019-11-07 03:34:57,345 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:34:57,352 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:34:57,358 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:34:57,359 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs