/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 --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=BIGGEST --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 -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 23:12:45,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:12:45,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:12:45,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:12:45,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:12:45,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:12:45,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:12:45,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:12:45,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:12:45,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:12:45,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:12:45,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:12:45,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:12:45,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:12:45,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:12:45,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:12:45,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:12:45,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:12:45,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:12:45,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:12:45,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:12:45,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:12:45,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:12:45,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:12:45,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:12:45,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:12:45,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:12:45,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:12:45,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:12:45,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:12:45,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:12:45,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:12:45,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:12:45,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:12:45,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:12:45,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:12:45,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:12:45,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:12:45,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:12:45,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:12:45,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:12:45,228 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 [2020-10-12 23:12:45,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:12:45,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:12:45,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:12:45,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:12:45,265 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:12:45,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:12:45,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:12:45,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:12:45,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:12:45,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:12:45,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:12:45,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:12:45,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:12:45,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:12:45,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:12:45,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:12:45,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:12:45,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:12:45,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:12:45,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:12:45,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:12:45,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:12:45,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:12:45,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:12:45,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:12:45,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:12:45,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:12:45,271 INFO L138 SettingsManager]: * To the following directory=dump/ 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 23:12:45,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:12:45,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:12:45,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:12:45,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:12:45,597 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:12:45,597 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2020-10-12 23:12:45,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4b0e7845/c992fc240c204a5aa43e91cd8fc7851b/FLAGd9fb0d92b [2020-10-12 23:12:46,467 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:12:46,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2020-10-12 23:12:46,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4b0e7845/c992fc240c204a5aa43e91cd8fc7851b/FLAGd9fb0d92b [2020-10-12 23:12:46,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4b0e7845/c992fc240c204a5aa43e91cd8fc7851b [2020-10-12 23:12:46,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:12:46,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:12:46,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:12:46,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:12:46,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:12:46,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:12:46" (1/1) ... [2020-10-12 23:12:46,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca0bbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:46, skipping insertion in model container [2020-10-12 23:12:46,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:12:46" (1/1) ... [2020-10-12 23:12:47,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:12:47,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:12:49,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:12:49,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:12:49,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:12:49,856 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:12:49,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49 WrapperNode [2020-10-12 23:12:49,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:12:49,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:12:49,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:12:49,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:12:49,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:49,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:49,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:49,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:50,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:50,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:50,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (1/1) ... [2020-10-12 23:12:50,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:12:50,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:12:50,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:12:50,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:12:50,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (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 [2020-10-12 23:12:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:12:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:12:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:12:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2020-10-12 23:12:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-12 23:12:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-12 23:12:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-12 23:12:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-12 23:12:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-12 23:12:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-12 23:12:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-12 23:12:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-12 23:12:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-12 23:12:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-12 23:12:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-12 23:12:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 23:12:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 23:12:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-12 23:12:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 23:12:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:12:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-12 23:12:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_write_bulk_callback [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_free [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_setup_firmware [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_fw_timeo [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_probe [2020-10-12 23:12:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_disconnect [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_send_fw_pkt [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_reset_device [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_block [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __if_usb_submit_rx_urb [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb_fwload [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb [2020-10-12 23:12:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive_fwload [2020-10-12 23:12:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdtypedata [2020-10-12 23:12:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdrequest [2020-10-12 23:12:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_host_to_card [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_issue_boot_command [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fwfile_format [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_prog_firmware [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_suspend [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_resume [2020-10-12 23:12:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_init [2020-10-12 23:12:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_exit [2020-10-12 23:12:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2020-10-12 23:12:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2020-10-12 23:12:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:12:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_1 [2020-10-12 23:12:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:12:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_3 [2020-10-12 23:12:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_4 [2020-10-12 23:12:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-12 23:12:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_6 [2020-10-12 23:12:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_11 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2020-10-12 23:12:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_16 [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_17 [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_20 [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_21 [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-12 23:12:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-12 23:12:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-12 23:12:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-12 23:12:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-12 23:12:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-12 23:12:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-12 23:12:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-12 23:12:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:12:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-12 23:12:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2020-10-12 23:12:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-12 23:12:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-12 23:12:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2020-10-12 23:12:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_card [2020-10-12 23:12:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_firmware_async [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_to_card_done [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_notify_command_response [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_rxed_packet [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_queue_event [2020-10-12 23:12:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_card [2020-10-12 23:12:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2020-10-12 23:12:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_tx_feedback [2020-10-12 23:12:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2020-10-12 23:12:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_card [2020-10-12 23:12:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2020-10-12 23:12:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:12:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2020-10-12 23:12:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-12 23:12:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2020-10-12 23:12:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-12 23:12:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-12 23:12:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 23:12:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-12 23:12:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-12 23:12:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-10-12 23:12:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-12 23:12:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:12:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-12 23:12:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 23:12:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 23:12:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:12:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-12 23:12:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-12 23:12:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-12 23:12:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-12 23:12:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-12 23:12:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-12 23:12:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-12 23:12:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_1 [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_16 [2020-10-12 23:12:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_17 [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-12 23:12:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2020-10-12 23:12:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_11 [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_20 [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:12:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_21 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_6 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_3 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_4 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2020-10-12 23:12:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-12 23:12:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:12:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:12:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2020-10-12 23:12:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-12 23:12:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_tx_feedback [2020-10-12 23:12:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_rxed_packet [2020-10-12 23:12:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_card [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_card [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_card [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_to_card_done [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2020-10-12 23:12:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_queue_event [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_notify_command_response [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_firmware_async [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_copyback [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive [2020-10-12 23:12:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive_fwload [2020-10-12 23:12:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_prog_firmware [2020-10-12 23:12:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_host_to_card [2020-10-12 23:12:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_block [2020-10-12 23:12:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_free [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_reset_device [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_write_bulk_callback [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_setup_firmware [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_fw_timeo [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_probe [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_disconnect [2020-10-12 23:12:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_send_fw_pkt [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __if_usb_submit_rx_urb [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb_fwload [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdtypedata [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdrequest [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_issue_boot_command [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure check_fwfile_format [2020-10-12 23:12:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_suspend [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_resume [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_init [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_exit [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-12 23:12:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:12:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:12:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 23:12:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 23:12:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 23:12:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 23:12:51,530 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 23:12:57,993 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-12 23:12:59,237 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:12:59,237 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 23:12:59,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:12:59 BoogieIcfgContainer [2020-10-12 23:12:59,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:12:59,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:12:59,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:12:59,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:12:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:12:46" (1/3) ... [2020-10-12 23:12:59,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68423e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:12:59, skipping insertion in model container [2020-10-12 23:12:59,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:12:49" (2/3) ... [2020-10-12 23:12:59,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68423e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:12:59, skipping insertion in model container [2020-10-12 23:12:59,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:12:59" (3/3) ... [2020-10-12 23:12:59,260 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2020-10-12 23:12:59,275 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:12:59,288 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:12:59,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:12:59,346 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:12:59,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:12:59,346 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:12:59,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:12:59,347 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:12:59,347 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:12:59,347 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:12:59,347 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:12:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states. [2020-10-12 23:12:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 23:12:59,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:12:59,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:12:59,412 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:12:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:12:59,421 INFO L82 PathProgramCache]: Analyzing trace with hash -826621277, now seen corresponding path program 1 times [2020-10-12 23:12:59,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:12:59,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009910499] [2020-10-12 23:12:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:13:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:06,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:06,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 23:13:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:13:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5799 [2020-10-12 23:13:06,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:13:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 23:13:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:13:06,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 23:13:14,212 WARN L193 SmtUtils]: Spent 7.66 s on a formula simplification that was a NOOP. DAG size: 1240 [2020-10-12 23:13:14,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:13:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:14,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:15,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:13:15,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1328 [2020-10-12 23:13:15,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:15,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:13:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:15,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:13:15,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:13:15,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:15,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:13:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:13:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:15,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:13:15,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 23:13:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:15,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:13:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:15,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:15,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:15,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:13:15,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:15,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 23:13:15,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:13:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:13:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:13:15,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:16,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 23:13:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:16,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:16,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:16,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:13:16,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:16,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:13:16,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:13:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 23:13:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:16,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:16,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:16,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:13:16,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 23:13:16,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:16,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:13:16,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:16,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:13:16,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:13:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:16,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:16,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:13:16,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 23:13:16,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:16,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:13:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:13:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:13:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:13:16,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:13:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:13:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:13:16,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:13:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:13:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:13:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 23:13:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:13:16,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009910499] [2020-10-12 23:13:16,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:13:16,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 23:13:16,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998864726] [2020-10-12 23:13:16,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 23:13:16,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:13:16,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 23:13:16,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 23:13:16,362 INFO L87 Difference]: Start difference. First operand 1313 states. Second operand 9 states. [2020-10-12 23:13:24,164 WARN L193 SmtUtils]: Spent 7.72 s on a formula simplification that was a NOOP. DAG size: 1249 [2020-10-12 23:13:34,974 WARN L193 SmtUtils]: Spent 7.67 s on a formula simplification that was a NOOP. DAG size: 1252 [2020-10-12 23:13:42,755 WARN L193 SmtUtils]: Spent 7.67 s on a formula simplification that was a NOOP. DAG size: 1254 [2020-10-12 23:14:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:38,508 INFO L93 Difference]: Finished difference Result 2718 states and 3807 transitions. [2020-10-12 23:14:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 23:14:38,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-12 23:14:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:38,543 INFO L225 Difference]: With dead ends: 2718 [2020-10-12 23:14:38,543 INFO L226 Difference]: Without dead ends: 1643 [2020-10-12 23:14:38,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-12 23:14:38,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-10-12 23:14:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1044. [2020-10-12 23:14:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-12 23:14:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1383 transitions. [2020-10-12 23:14:39,159 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1383 transitions. Word has length 49 [2020-10-12 23:14:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:39,160 INFO L479 AbstractCegarLoop]: Abstraction has 1044 states and 1383 transitions. [2020-10-12 23:14:39,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 23:14:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1383 transitions. [2020-10-12 23:14:39,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 23:14:39,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:39,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:14:39,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:14:39,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:39,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:39,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1469169876, now seen corresponding path program 1 times [2020-10-12 23:14:39,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:39,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122524575] [2020-10-12 23:14:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:39,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:41,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:45,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 23:14:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:14:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6047 [2020-10-12 23:14:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:14:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 23:14:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:14:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:53,432 WARN L193 SmtUtils]: Spent 7.78 s on a formula simplification that was a NOOP. DAG size: 1240 [2020-10-12 23:14:53,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:53,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:55,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1743 [2020-10-12 23:14:55,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:55,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:14:55,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:55,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:14:55,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:14:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 23:14:55,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 23:14:55,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:14:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:14:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:14:55,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:14:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:14:55,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 23:14:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:14:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:14:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:14:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:14:55,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:14:55,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:55,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:55,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:55,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:55,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:14:55,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:55,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:14:55,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122524575] [2020-10-12 23:14:55,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:14:55,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 23:14:55,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27684175] [2020-10-12 23:14:55,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 23:14:55,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:55,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 23:14:55,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 23:14:55,821 INFO L87 Difference]: Start difference. First operand 1044 states and 1383 transitions. Second operand 10 states. [2020-10-12 23:15:03,554 WARN L193 SmtUtils]: Spent 7.68 s on a formula simplification that was a NOOP. DAG size: 1249 [2020-10-12 23:15:13,992 WARN L193 SmtUtils]: Spent 7.62 s on a formula simplification that was a NOOP. DAG size: 1252 [2020-10-12 23:15:21,881 WARN L193 SmtUtils]: Spent 7.79 s on a formula simplification that was a NOOP. DAG size: 1243 [2020-10-12 23:15:29,650 WARN L193 SmtUtils]: Spent 7.66 s on a formula simplification that was a NOOP. DAG size: 1245 [2020-10-12 23:16:27,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:16:27,744 INFO L93 Difference]: Finished difference Result 2673 states and 3653 transitions. [2020-10-12 23:16:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 23:16:27,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-12 23:16:27,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:16:27,759 INFO L225 Difference]: With dead ends: 2673 [2020-10-12 23:16:27,759 INFO L226 Difference]: Without dead ends: 1644 [2020-10-12 23:16:27,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 39.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-12 23:16:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2020-10-12 23:16:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1045. [2020-10-12 23:16:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-10-12 23:16:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1384 transitions. [2020-10-12 23:16:28,280 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1384 transitions. Word has length 50 [2020-10-12 23:16:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:16:28,281 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1384 transitions. [2020-10-12 23:16:28,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 23:16:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1384 transitions. [2020-10-12 23:16:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 23:16:28,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:16:28,284 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 23:16:28,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:16:28,284 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:16:28,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:16:28,285 INFO L82 PathProgramCache]: Analyzing trace with hash -375748413, now seen corresponding path program 2 times [2020-10-12 23:16:28,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:16:28,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040289641] [2020-10-12 23:16:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:16:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:28,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:33,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:33,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 23:16:33,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:16:33,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 23:16:33,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:33,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 23:16:33,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 23:16:33,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:16:33,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0