/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 08:22:16,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 08:22:16,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 08:22:16,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 08:22:16,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 08:22:16,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 08:22:16,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 08:22:16,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 08:22:16,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 08:22:16,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 08:22:16,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 08:22:16,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 08:22:16,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 08:22:16,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 08:22:16,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 08:22:16,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 08:22:16,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 08:22:16,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 08:22:16,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 08:22:16,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 08:22:16,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 08:22:16,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 08:22:16,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 08:22:16,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 08:22:16,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 08:22:16,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 08:22:16,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 08:22:16,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 08:22:16,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 08:22:16,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 08:22:16,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 08:22:16,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 08:22:16,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 08:22:16,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 08:22:16,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 08:22:16,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 08:22:16,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 08:22:16,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 08:22:16,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 08:22:16,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 08:22:16,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 08:22:16,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 08:22:16,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 08:22:16,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 08:22:16,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 08:22:16,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 08:22:16,511 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 08:22:16,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 08:22:16,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 08:22:16,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 08:22:16,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 08:22:16,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 08:22:16,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 08:22:16,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 08:22:16,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 08:22:16,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 08:22:16,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 08:22:16,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 08:22:16,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 08:22:16,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 08:22:16,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 08:22:16,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 08:22:16,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 08:22:16,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 08:22:16,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 08:22:16,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 08:22:16,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 08:22:16,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 08:22:16,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 08:22:16,517 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 08:22:16,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 08:22:16,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 08:22:16,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 08:22:16,944 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 08:22:16,945 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 08:22:16,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-28 08:22:17,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d413486e/bade4de298254dedbe517f576e824465/FLAG5c5b5a6e0 [2020-10-28 08:22:18,203 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 08:22:18,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-28 08:22:18,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d413486e/bade4de298254dedbe517f576e824465/FLAG5c5b5a6e0 [2020-10-28 08:22:18,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d413486e/bade4de298254dedbe517f576e824465 [2020-10-28 08:22:18,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 08:22:18,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 08:22:18,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 08:22:18,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 08:22:18,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 08:22:18,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:22:18" (1/1) ... [2020-10-28 08:22:18,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793b1e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:18, skipping insertion in model container [2020-10-28 08:22:18,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:22:18" (1/1) ... [2020-10-28 08:22:18,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 08:22:18,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 08:22:20,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:22:20,611 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 08:22:20,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:22:21,229 INFO L208 MainTranslator]: Completed translation [2020-10-28 08:22:21,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21 WrapperNode [2020-10-28 08:22:21,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 08:22:21,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 08:22:21,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 08:22:21,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 08:22:21,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... [2020-10-28 08:22:21,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 08:22:21,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 08:22:21,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 08:22:21,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 08:22:21,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-28 08:22:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 08:22:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 08:22:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-28 08:22:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 08:22:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 08:22:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-28 08:22:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-28 08:22:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 08:22:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-28 08:22:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-28 08:22:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 08:22:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-28 08:22:21,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-28 08:22:21,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-28 08:22:21,738 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-28 08:22:21,739 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 08:22:21,739 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-28 08:22:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-28 08:22:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-28 08:22:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-28 08:22:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-28 08:22:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 08:22:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 08:22:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-28 08:22:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-28 08:22:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-28 08:22:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-28 08:22:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-28 08:22:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-28 08:22:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-28 08:22:21,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-28 08:22:21,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-28 08:22:21,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-28 08:22:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-28 08:22:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-28 08:22:21,751 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-28 08:22:21,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-28 08:22:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-28 08:22:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-28 08:22:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-28 08:22:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-28 08:22:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-28 08:22:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-28 08:22:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-28 08:22:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-28 08:22:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-28 08:22:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-28 08:22:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-28 08:22:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-28 08:22:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-28 08:22:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-28 08:22:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-28 08:22:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_gadget_driver_1 [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2020-10-28 08:22:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 08:22:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 08:22:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 08:22:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_5 [2020-10-28 08:22:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_6 [2020-10-28 08:22:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_7 [2020-10-28 08:22:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-28 08:22:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_9 [2020-10-28 08:22:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_10 [2020-10-28 08:22:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-28 08:22:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-28 08:22:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_13 [2020-10-28 08:22:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_14 [2020-10-28 08:22:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-28 08:22:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2020-10-28 08:22:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 08:22:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 08:22:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 08:22:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 08:22:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-28 08:22:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-28 08:22:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-28 08:22:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 08:22:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-28 08:22:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 08:22:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 08:22:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-28 08:22:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 08:22:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 08:22:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 08:22:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 08:22:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 08:22:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 08:22:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-28 08:22:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-28 08:22:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-28 08:22:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-28 08:22:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-28 08:22:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-28 08:22:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 08:22:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 08:22:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 08:22:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-28 08:22:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-28 08:22:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 08:22:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-28 08:22:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 08:22:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 08:22:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 08:22:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-28 08:22:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 08:22:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 08:22:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 08:22:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 08:22:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_prefetch [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 08:22:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-28 08:22:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 08:22:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 08:22:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-28 08:22:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 08:22:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-28 08:22:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-28 08:22:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-28 08:22:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 08:22:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 08:22:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 08:22:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 08:22:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 08:22:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 08:22:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 08:22:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 08:22:21,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 08:22:21,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_gadget_driver_1 [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 08:22:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 08:22:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-28 08:22:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_10 [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-28 08:22:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_7 [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_13 [2020-10-28 08:22:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_6 [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_5 [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-28 08:22:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 08:22:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_9 [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-28 08:22:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_14 [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-28 08:22:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-28 08:22:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-28 08:22:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 08:22:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-28 08:22:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 08:22:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 08:22:23,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 08:22:57,823 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-28 08:23:00,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 08:23:00,492 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 08:23:00,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:23:00 BoogieIcfgContainer [2020-10-28 08:23:00,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 08:23:00,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 08:23:00,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 08:23:00,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 08:23:00,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:22:18" (1/3) ... [2020-10-28 08:23:00,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac11591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:23:00, skipping insertion in model container [2020-10-28 08:23:00,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:22:21" (2/3) ... [2020-10-28 08:23:00,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac11591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:23:00, skipping insertion in model container [2020-10-28 08:23:00,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:23:00" (3/3) ... [2020-10-28 08:23:00,509 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-28 08:23:00,521 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 08:23:00,528 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 08:23:00,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 08:23:00,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 08:23:00,577 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 08:23:00,577 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 08:23:00,577 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 08:23:00,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 08:23:00,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 08:23:00,578 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 08:23:00,578 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 08:23:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states. [2020-10-28 08:23:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 08:23:00,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:23:00,657 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:23:00,657 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:23:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:23:00,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1718031680, now seen corresponding path program 1 times [2020-10-28 08:23:00,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:23:00,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879992019] [2020-10-28 08:23:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:23:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:05,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 08:23:09,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:23:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7796 [2020-10-28 08:23:09,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:23:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-28 08:23:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 08:23:09,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 08:23:14,573 WARN L193 SmtUtils]: Spent 4.95 s on a formula simplification that was a NOOP. DAG size: 865 [2020-10-28 08:23:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:23:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:23:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:23:15,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:23:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 08:23:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:23:15,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 08:23:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 08:23:15,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 08:23:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 08:23:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:23:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:23:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 08:23:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:23:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:23:15,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:23:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 08:23:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:23:15,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:23:15,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:23:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 08:23:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:23:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:23:15,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:23:15,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:23:15,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:23:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:23:15,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:23:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:23:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:23:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:23:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:23:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-28 08:23:15,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879992019] [2020-10-28 08:23:15,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:23:15,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 08:23:15,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201033052] [2020-10-28 08:23:15,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 08:23:15,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:23:15,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 08:23:15,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 08:23:15,780 INFO L87 Difference]: Start difference. First operand 1620 states. Second operand 5 states. [2020-10-28 08:23:25,008 WARN L193 SmtUtils]: Spent 4.79 s on a formula simplification that was a NOOP. DAG size: 867 [2020-10-28 08:24:47,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:24:47,867 INFO L93 Difference]: Finished difference Result 5029 states and 7239 transitions. [2020-10-28 08:24:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 08:24:47,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-10-28 08:24:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:24:47,928 INFO L225 Difference]: With dead ends: 5029 [2020-10-28 08:24:47,928 INFO L226 Difference]: Without dead ends: 3415 [2020-10-28 08:24:47,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 08:24:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2020-10-28 08:24:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 2756. [2020-10-28 08:24:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2756 states. [2020-10-28 08:24:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3785 transitions. [2020-10-28 08:24:49,121 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3785 transitions. Word has length 70 [2020-10-28 08:24:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:24:49,122 INFO L481 AbstractCegarLoop]: Abstraction has 2756 states and 3785 transitions. [2020-10-28 08:24:49,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 08:24:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3785 transitions. [2020-10-28 08:24:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 08:24:49,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:24:49,128 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:24:49,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 08:24:49,128 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:24:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:24:49,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1966608436, now seen corresponding path program 1 times [2020-10-28 08:24:49,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:24:49,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828160429] [2020-10-28 08:24:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:24:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:54,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:54,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 08:24:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-28 08:24:54,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:24:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:24:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 08:24:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:59,432 WARN L193 SmtUtils]: Spent 4.85 s on a formula simplification that was a NOOP. DAG size: 865 [2020-10-28 08:24:59,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:24:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:59,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:01,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1776 [2020-10-28 08:25:01,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:25:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 08:25:01,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 08:25:01,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 08:25:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 08:25:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 08:25:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 08:25:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 08:25:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:25:01,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 08:25:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:01,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:01,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:25:01,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:01,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-28 08:25:01,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828160429] [2020-10-28 08:25:01,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:25:01,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 08:25:01,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89343338] [2020-10-28 08:25:01,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 08:25:01,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:01,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 08:25:01,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 08:25:01,682 INFO L87 Difference]: Start difference. First operand 2756 states and 3785 transitions. Second operand 6 states. [2020-10-28 08:25:08,636 WARN L193 SmtUtils]: Spent 4.74 s on a formula simplification that was a NOOP. DAG size: 867