/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 23:44:01,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 23:44:01,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 23:44:01,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 23:44:01,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 23:44:01,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 23:44:01,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 23:44:01,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 23:44:01,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 23:44:01,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 23:44:01,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 23:44:01,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 23:44:01,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 23:44:01,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 23:44:01,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 23:44:01,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 23:44:01,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 23:44:01,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 23:44:01,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 23:44:01,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 23:44:01,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 23:44:01,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 23:44:01,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 23:44:01,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 23:44:01,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 23:44:01,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 23:44:01,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 23:44:01,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 23:44:01,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 23:44:01,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 23:44:01,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 23:44:01,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 23:44:01,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 23:44:01,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 23:44:01,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 23:44:01,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 23:44:01,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 23:44:01,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 23:44:01,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 23:44:01,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 23:44:01,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 23:44:01,840 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 23:44:01,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 23:44:01,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 23:44:01,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 23:44:01,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 23:44:01,873 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 23:44:01,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 23:44:01,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 23:44:01,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 23:44:01,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 23:44:01,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 23:44:01,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 23:44:01,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 23:44:01,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 23:44:01,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 23:44:01,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 23:44:01,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 23:44:01,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 23:44:01,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 23:44:01,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 23:44:01,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 23:44:01,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 23:44:01,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 23:44:01,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 23:44:01,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 23:44:01,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 23:44:01,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 23:44:01,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 23:44:01,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 23:44:02,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 23:44:02,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 23:44:02,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 23:44:02,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 23:44:02,328 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 23:44:02,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-28 23:44:02,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a49bfd7/53ca07013c504c5b892a0aa37681a293/FLAG85c758a87 [2020-10-28 23:44:03,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 23:44:03,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-28 23:44:03,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a49bfd7/53ca07013c504c5b892a0aa37681a293/FLAG85c758a87 [2020-10-28 23:44:03,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a49bfd7/53ca07013c504c5b892a0aa37681a293 [2020-10-28 23:44:03,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 23:44:03,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 23:44:03,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 23:44:03,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 23:44:03,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 23:44:03,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:44:03" (1/1) ... [2020-10-28 23:44:03,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129127ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:03, skipping insertion in model container [2020-10-28 23:44:03,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:44:03" (1/1) ... [2020-10-28 23:44:03,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 23:44:04,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 23:44:04,607 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2020-10-28 23:44:04,608 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2020-10-28 23:44:05,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:44:05,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 23:44:05,908 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2020-10-28 23:44:05,909 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2020-10-28 23:44:06,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:44:06,592 INFO L208 MainTranslator]: Completed translation [2020-10-28 23:44:06,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06 WrapperNode [2020-10-28 23:44:06,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 23:44:06,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 23:44:06,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 23:44:06,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 23:44:06,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:06,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (1/1) ... [2020-10-28 23:44:07,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 23:44:07,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 23:44:07,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 23:44:07,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 23:44:07,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (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 23:44:07,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 23:44:07,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 23:44:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 23:44:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-28 23:44:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 23:44:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-28 23:44:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2020-10-28 23:44:07,125 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-28 23:44:07,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-28 23:44:07,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-28 23:44:07,126 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 23:44:07,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 23:44:07,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-28 23:44:07,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 23:44:07,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-10-28 23:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_control [2020-10-28 23:44:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_in [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_out [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_diff [2020-10-28 23:44:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_max3421 [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_to_hcd [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd8 [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr8 [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd_buf [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr_buf [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_speed [2020-10-28 23:44:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_address [2020-10-28 23:44:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_ctrl_setup [2020-10-28 23:44:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in [2020-10-28 23:44:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out [2020-10-28 23:44:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_next_transfer [2020-10-28 23:44:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_select_and_start_urb [2020-10-28 23:44:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_check_unlink [2020-10-28 23:44:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_slow_retransmit [2020-10-28 23:44:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_recv_data_available [2020-10-28 23:44:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_error [2020-10-28 23:44:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in_done [2020-10-28 23:44:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out_done [2020-10-28 23:44:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_host_transfer_done [2020-10-28 23:44:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_detect_conn [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_irq_handler [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_irqs [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_hcd [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_done [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_spi_thread [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_port [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset [2020-10-28 23:44:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_start [2020-10-28 23:44:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_stop [2020-10-28 23:44:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_enqueue [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_dequeue [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_endpoint_disable [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_get_frame_number [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_status_data [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_descriptor [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_gpout_set_value [2020-10-28 23:44:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_control [2020-10-28 23:44:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_suspend [2020-10-28 23:44:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_resume [2020-10-28 23:44:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_map_urb_for_dma [2020-10-28 23:44:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_unmap_urb_for_dma [2020-10-28 23:44:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_probe [2020-10-28 23:44:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_remove [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_init [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_exit [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hc_driver_3 [2020-10-28 23:44:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_2 [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_19 [2020-10-28 23:44:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_20 [2020-10-28 23:44:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-28 23:44:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 23:44:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-28 23:44:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2020-10-28 23:44:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-28 23:44:07,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 23:44:07,146 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2020-10-28 23:44:07,146 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 23:44:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 23:44:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 23:44:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2020-10-28 23:44:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-10-28 23:44:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2020-10-28 23:44:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-28 23:44:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-28 23:44:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-28 23:44:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 23:44:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-28 23:44:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-28 23:44:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-10-28 23:44:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-10-28 23:44:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-10-28 23:44:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_hcd [2020-10-28 23:44:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_create_hcd [2020-10-28 23:44:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_check_unlink_urb [2020-10-28 23:44:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2020-10-28 23:44:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2020-10-28 23:44:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2020-10-28 23:44:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2020-10-28 23:44:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2020-10-28 23:44:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2020-10-28 23:44:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-28 23:44:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 23:44:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 23:44:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 23:44:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 23:44:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 23:44:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 23:44:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 23:44:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 23:44:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 23:44:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 23:44:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-28 23:44:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-28 23:44:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 23:44:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-28 23:44:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-28 23:44:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2020-10-28 23:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 23:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hc_driver_3 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_2 [2020-10-28 23:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-28 23:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-10-28 23:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_control [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2020-10-28 23:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_19 [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_20 [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_in [2020-10-28 23:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_out [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_check_unlink_urb [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_create_hcd [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_hcd [2020-10-28 23:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2020-10-28 23:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2020-10-28 23:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure frame_diff [2020-10-28 23:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_max3421 [2020-10-28 23:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_to_hcd [2020-10-28 23:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd8 [2020-10-28 23:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 23:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 23:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr8 [2020-10-28 23:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd_buf [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr_buf [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_speed [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_address [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_ctrl_setup [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out [2020-10-28 23:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_next_transfer [2020-10-28 23:44:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_select_and_start_urb [2020-10-28 23:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_check_unlink [2020-10-28 23:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_slow_retransmit [2020-10-28 23:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_recv_data_available [2020-10-28 23:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_error [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in_done [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out_done [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_host_transfer_done [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_detect_conn [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_irq_handler [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_irqs [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_hcd [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_done [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_spi_thread [2020-10-28 23:44:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_port [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_start [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_stop [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_enqueue [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_dequeue [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_endpoint_disable [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_get_frame_number [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_status_data [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure hub_descriptor [2020-10-28 23:44:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_gpout_set_value [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_control [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_suspend [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_resume [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_map_urb_for_dma [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_unmap_urb_for_dma [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_probe [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_remove [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_init [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_exit [2020-10-28 23:44:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 23:44:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 23:44:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 23:44:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 23:44:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 23:44:08,423 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 23:44:14,333 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 23:44:14,333 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 23:44:14,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:44:14 BoogieIcfgContainer [2020-10-28 23:44:14,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 23:44:14,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 23:44:14,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 23:44:14,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 23:44:14,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:44:03" (1/3) ... [2020-10-28 23:44:14,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb52397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:44:14, skipping insertion in model container [2020-10-28 23:44:14,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:06" (2/3) ... [2020-10-28 23:44:14,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb52397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:44:14, skipping insertion in model container [2020-10-28 23:44:14,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:44:14" (3/3) ... [2020-10-28 23:44:14,354 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-28 23:44:14,367 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 23:44:14,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 23:44:14,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 23:44:14,447 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 23:44:14,447 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 23:44:14,447 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 23:44:14,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 23:44:14,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 23:44:14,447 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 23:44:14,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 23:44:14,448 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 23:44:14,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states. [2020-10-28 23:44:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-28 23:44:14,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:44:14,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:44:14,552 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:44:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:44:14,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1951709928, now seen corresponding path program 1 times [2020-10-28 23:44:14,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:44:14,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997455048] [2020-10-28 23:44:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:44:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:15,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:20,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-28 23:44:20,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 23:44:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5233 [2020-10-28 23:44:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:20,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:44:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 23:44:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 23:44:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 23:44:23,446 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 643 [2020-10-28 23:44:23,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:44:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:44:23,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-28 23:44:23,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:44:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:44:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:44:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:44:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:44:23,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:44:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:44:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 23:44:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:44:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:44:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:44:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:44:23,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 23:44:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:44:23,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:44:23,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:44:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:44:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 23:44:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 23:44:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:44:23,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:44:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:44:23,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 23:44:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 23:44:23,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 23:44:23,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 23:44:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:44:23,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 23:44:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:44:23,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:44:23,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:44:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:44:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 23:44:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:44:23,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:44:23,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:44:23,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:44:23,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:44:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:44:23,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:44:23,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:44:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:44:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:44:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:44:23,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:44:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 23:44:24,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997455048] [2020-10-28 23:44:24,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:44:24,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 23:44:24,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122747819] [2020-10-28 23:44:24,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 23:44:24,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:44:24,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 23:44:24,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 23:44:24,074 INFO L87 Difference]: Start difference. First operand 1386 states. Second operand 6 states. [2020-10-28 23:44:26,898 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-28 23:44:33,825 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 648 [2020-10-28 23:44:36,758 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification that was a NOOP. DAG size: 645 [2020-10-28 23:45:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:45:09,311 INFO L93 Difference]: Finished difference Result 2666 states and 3915 transitions. [2020-10-28 23:45:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 23:45:09,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-28 23:45:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:45:09,363 INFO L225 Difference]: With dead ends: 2666 [2020-10-28 23:45:09,363 INFO L226 Difference]: Without dead ends: 1839 [2020-10-28 23:45:09,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 23:45:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2020-10-28 23:45:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1057. [2020-10-28 23:45:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-10-28 23:45:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1345 transitions. [2020-10-28 23:45:10,035 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1345 transitions. Word has length 79 [2020-10-28 23:45:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:45:10,036 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1345 transitions. [2020-10-28 23:45:10,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 23:45:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1345 transitions. [2020-10-28 23:45:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 23:45:10,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:45:10,041 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:45:10,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 23:45:10,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:45:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:45:10,043 INFO L82 PathProgramCache]: Analyzing trace with hash 629740440, now seen corresponding path program 1 times [2020-10-28 23:45:10,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:45:10,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96386301] [2020-10-28 23:45:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:45:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:15,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 23:45:15,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 23:45:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5157 [2020-10-28 23:45:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:15,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:45:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 23:45:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 23:45:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,126 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 643 [2020-10-28 23:45:18,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:45:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:45:18,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-28 23:45:18,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:45:18,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:45:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:45:18,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:45:18,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:45:18,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 23:45:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:45:18,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:45:18,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 23:45:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:45:18,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:45:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 23:45:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 23:45:18,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:45:18,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:45:18,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 23:45:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:45:18,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:45:18,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:45:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:45:18,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 23:45:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:45:18,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:45:18,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 23:45:18,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 23:45:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 23:45:18,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 23:45:18,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 23:45:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:45:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:45:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 23:45:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:45:18,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 23:45:18,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:45:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 23:45:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:45:18,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 23:45:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:45:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:45:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:45:18,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:45:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:45:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:45:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:45:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 23:45:18,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96386301] [2020-10-28 23:45:18,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:45:18,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 23:45:18,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202931224] [2020-10-28 23:45:18,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 23:45:18,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:45:18,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 23:45:18,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 23:45:18,858 INFO L87 Difference]: Start difference. First operand 1057 states and 1345 transitions. Second operand 7 states. [2020-10-28 23:45:21,598 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 652 [2020-10-28 23:45:32,151 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 654 [2020-10-28 23:45:35,071 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification that was a NOOP. DAG size: 645 [2020-10-28 23:46:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:46:12,466 INFO L93 Difference]: Finished difference Result 4160 states and 5895 transitions. [2020-10-28 23:46:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 23:46:12,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-28 23:46:12,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:46:12,490 INFO L225 Difference]: With dead ends: 4160 [2020-10-28 23:46:12,491 INFO L226 Difference]: Without dead ends: 3119 [2020-10-28 23:46:12,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-28 23:46:12,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2020-10-28 23:46:13,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 1664. [2020-10-28 23:46:13,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2020-10-28 23:46:13,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2146 transitions. [2020-10-28 23:46:13,012 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2146 transitions. Word has length 84 [2020-10-28 23:46:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:46:13,013 INFO L481 AbstractCegarLoop]: Abstraction has 1664 states and 2146 transitions. [2020-10-28 23:46:13,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 23:46:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2146 transitions. [2020-10-28 23:46:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 23:46:13,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:46:13,021 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:46:13,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 23:46:13,021 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:46:13,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:46:13,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1807401141, now seen corresponding path program 1 times [2020-10-28 23:46:13,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:46:13,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630183349] [2020-10-28 23:46:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:46:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:13,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:15,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:15,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 23:46:15,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2051 [2020-10-28 23:46:15,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:15,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:46:15,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-28 23:46:15,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 23:46:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 23:46:18,345 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 643 [2020-10-28 23:46:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:46:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:46:18,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-28 23:46:18,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:46:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:18,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:46:18,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:18,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 23:46:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:18,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:46:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:18,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 23:46:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:18,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:46:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:18,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 23:46:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 23:46:18,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:46:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:18,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 23:46:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:18,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:46:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:46:18,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:46:18,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 23:46:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 23:46:18,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 23:46:18,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:18,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:46:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:18,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:18,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:18,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:18,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:18,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:46:18,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:18,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:18,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:18,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:18,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:19,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 23:46:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 23:46:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 23:46:19,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:19,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:46:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:19,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 23:46:19,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:19,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 23:46:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:46:19,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:19,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 23:46:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 23:46:19,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:46:19,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:46:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-28 23:46:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:46:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:46:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:46:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:19,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-28 23:46:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:46:19,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:46:19,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:46:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:46:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:46:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:46:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:46:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-28 23:46:19,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630183349] [2020-10-28 23:46:19,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:46:19,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 23:46:19,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748883579] [2020-10-28 23:46:19,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 23:46:19,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:46:19,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 23:46:19,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 23:46:19,244 INFO L87 Difference]: Start difference. First operand 1664 states and 2146 transitions. Second operand 8 states. [2020-10-28 23:46:22,122 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-28 23:46:42,687 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification that was a NOOP. DAG size: 647 [2020-10-28 23:46:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:46:48,443 INFO L93 Difference]: Finished difference Result 4719 states and 6619 transitions. [2020-10-28 23:46:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 23:46:48,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-10-28 23:46:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:46:48,472 INFO L225 Difference]: With dead ends: 4719 [2020-10-28 23:46:48,472 INFO L226 Difference]: Without dead ends: 3096 [2020-10-28 23:46:48,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-10-28 23:46:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2020-10-28 23:46:49,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 1666. [2020-10-28 23:46:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-10-28 23:46:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2146 transitions. [2020-10-28 23:46:49,041 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2146 transitions. Word has length 125 [2020-10-28 23:46:49,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:46:49,042 INFO L481 AbstractCegarLoop]: Abstraction has 1666 states and 2146 transitions. [2020-10-28 23:46:49,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 23:46:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2146 transitions. [2020-10-28 23:46:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 23:46:49,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:46:49,050 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:46:49,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 23:46:49,050 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:46:49,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:46:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash 989752691, now seen corresponding path program 1 times [2020-10-28 23:46:49,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:46:49,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365746660] [2020-10-28 23:46:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:46:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 23:46:49,365 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 23:46:49,366 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 23:46:49,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 23:46:49,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:46:49 BoogieIcfgContainer [2020-10-28 23:46:49,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 23:46:49,410 INFO L168 Benchmark]: Toolchain (without parser) took 165509.81 ms. Allocated memory was 164.6 MB in the beginning and 954.2 MB in the end (delta: 789.6 MB). Free memory was 131.5 MB in the beginning and 714.1 MB in the end (delta: -582.6 MB). Peak memory consumption was 208.0 MB. Max. memory is 8.0 GB. [2020-10-28 23:46:49,410 INFO L168 Benchmark]: CDTParser took 3.30 ms. Allocated memory is still 164.6 MB. Free memory is still 137.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 23:46:49,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2687.94 ms. Allocated memory was 164.6 MB in the beginning and 221.2 MB in the end (delta: 56.6 MB). Free memory was 130.9 MB in the beginning and 151.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 112.6 MB. Max. memory is 8.0 GB. [2020-10-28 23:46:49,412 INFO L168 Benchmark]: Boogie Preprocessor took 429.16 ms. Allocated memory is still 221.2 MB. Free memory was 151.5 MB in the beginning and 166.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2020-10-28 23:46:49,413 INFO L168 Benchmark]: RCFGBuilder took 7314.56 ms. Allocated memory was 221.2 MB in the beginning and 477.1 MB in the end (delta: 255.9 MB). Free memory was 166.2 MB in the beginning and 406.4 MB in the end (delta: -240.2 MB). Peak memory consumption was 206.0 MB. Max. memory is 8.0 GB. [2020-10-28 23:46:49,414 INFO L168 Benchmark]: TraceAbstraction took 155064.70 ms. Allocated memory was 477.1 MB in the beginning and 954.2 MB in the end (delta: 477.1 MB). Free memory was 405.9 MB in the beginning and 714.1 MB in the end (delta: -308.2 MB). Peak memory consumption was 169.4 MB. Max. memory is 8.0 GB. [2020-10-28 23:46:49,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.30 ms. Allocated memory is still 164.6 MB. Free memory is still 137.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 2687.94 ms. Allocated memory was 164.6 MB in the beginning and 221.2 MB in the end (delta: 56.6 MB). Free memory was 130.9 MB in the beginning and 151.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 112.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 429.16 ms. Allocated memory is still 221.2 MB. Free memory was 151.5 MB in the beginning and 166.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 7314.56 ms. Allocated memory was 221.2 MB in the beginning and 477.1 MB in the end (delta: 255.9 MB). Free memory was 166.2 MB in the beginning and 406.4 MB in the end (delta: -240.2 MB). Peak memory consumption was 206.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 155064.70 ms. Allocated memory was 477.1 MB in the beginning and 954.2 MB in the end (delta: 477.1 MB). Free memory was 405.9 MB in the beginning and 714.1 MB in the end (delta: -308.2 MB). Peak memory consumption was 169.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 5883, overapproximation of bitwiseAnd at line 6549. Possible FailurePath: [L4010] int ldv_irq_1_2 = 0; [L4011] int LDV_IN_INTERRUPT = 1; [L4012] int ldv_irq_1_3 = 0; [L4013] void *ldv_irq_data_1_1 ; [L4014] int ldv_irq_1_1 = 0; [L4015] int ldv_irq_1_0 = 0; [L4016] struct urb *max3421_hcd_desc_group0 ; [L4017] int ldv_irq_line_1_3 ; [L4018] void *ldv_irq_data_1_0 ; [L4019] int ldv_state_variable_0 ; [L4020] struct usb_hcd *max3421_hcd_desc_group1 ; [L4021] int ldv_state_variable_3 ; [L4022] int ldv_irq_line_1_0 ; [L4023] int ldv_state_variable_2 ; [L4024] void *ldv_irq_data_1_3 ; [L4025] struct spi_device *max3421_driver_group0 ; [L4026] int ref_cnt ; [L4027] int ldv_irq_line_1_1 ; [L4028] void *ldv_irq_data_1_2 ; [L4029] int ldv_state_variable_1 ; [L4030] int ldv_irq_line_1_2 ; [L4208] static struct max3421_hcd *max3421_hcd_list ; [L4209-L4213] static int const hrsl_to_error[16U] = { 0, -22, -22, -22, -11, -32, -84, -71, -121, -71, -71, -84, -5, -5, -62, -75}; [L5882-L5888] static struct hc_driver max3421_hcd_desc = {"max3421", "MAX3421 USB Host-Controller Driver", 192UL, 0, 16, & max3421_reset, & max3421_start, 0, 0, & max3421_stop, 0, & max3421_get_frame_number, & max3421_urb_enqueue, & max3421_urb_dequeue, & max3421_map_urb_for_dma, & max3421_unmap_urb_for_dma, & max3421_endpoint_disable, 0, & max3421_hub_status_data, & max3421_hub_control, & max3421_bus_suspend, & max3421_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6027-L6029] static struct spi_driver max3421_driver = {0, & max3421_probe, & max3421_remove, 0, 0, 0, {"max3421-hcd", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L6045] int ldv_retval_0 ; [L6046] int ldv_retval_1 ; [L6049] int ldv_retval_2 ; [L6545] int ldv_spin = 0; [L6194] char *ldvarg7 ; [L6195] void *tmp ; [L6196] u16 ldvarg3 ; [L6197] u16 tmp___0 ; [L6198] u16 ldvarg0 ; [L6199] u16 tmp___1 ; [L6200] gfp_t ldvarg5 ; [L6201] gfp_t ldvarg6 ; [L6202] struct usb_host_endpoint *ldvarg8 ; [L6203] void *tmp___2 ; [L6204] u16 ldvarg1 ; [L6205] u16 tmp___3 ; [L6206] char *ldvarg4 ; [L6207] void *tmp___4 ; [L6208] int ldvarg9 ; [L6209] int tmp___5 ; [L6210] u16 ldvarg2 ; [L6211] u16 tmp___6 ; [L6212] int tmp___7 ; [L6213] int tmp___8 ; [L6214] int tmp___9 ; [L6215] int tmp___10 ; [L6217] CALL, EXPR ldv_zalloc(1UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6217] RET, EXPR ldv_zalloc(1UL) [L6217] tmp = ldv_zalloc(1UL) [L6218] ldvarg7 = (char *)tmp [L6219] tmp___0 = __VERIFIER_nondet_u16() [L6220] ldvarg3 = tmp___0 [L6221] tmp___1 = __VERIFIER_nondet_u16() [L6222] ldvarg0 = tmp___1 [L6223] CALL, EXPR ldv_zalloc(72UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6223] RET, EXPR ldv_zalloc(72UL) [L6223] tmp___2 = ldv_zalloc(72UL) [L6224] ldvarg8 = (struct usb_host_endpoint *)tmp___2 [L6225] tmp___3 = __VERIFIER_nondet_u16() [L6226] ldvarg1 = tmp___3 [L6227] CALL, EXPR ldv_zalloc(1UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6227] RET, EXPR ldv_zalloc(1UL) [L6227] tmp___4 = ldv_zalloc(1UL) [L6228] ldvarg4 = (char *)tmp___4 [L6229] tmp___5 = __VERIFIER_nondet_int() [L6230] ldvarg9 = tmp___5 [L6231] tmp___6 = __VERIFIER_nondet_u16() [L6232] ldvarg2 = tmp___6 [L6233] FCALL ldv_initialize() [L6234] ldvarg5 = (gfp_t)__VERIFIER_nondet_int() [L6235] ldvarg6 = (gfp_t)__VERIFIER_nondet_int() [L6236] ldv_state_variable_1 = 1 [L6237] ref_cnt = 0 [L6238] ldv_state_variable_0 = 1 [L6239] ldv_state_variable_3 = 0 [L6240] ldv_state_variable_2 = 0 [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: [L6251] COND TRUE ldv_state_variable_0 != 0 [L6252] tmp___8 = __VERIFIER_nondet_int() [L6254] case 0: [L6262] case 1: [L6263] COND TRUE ldv_state_variable_0 == 1 [L6264] CALL, EXPR max3421_driver_init() [L6032] int tmp ; [L6034] CALL, EXPR spi_register_driver(& max3421_driver) [L6691] return __VERIFIER_nondet_int(); [L6034] RET, EXPR spi_register_driver(& max3421_driver) [L6034] tmp = spi_register_driver(& max3421_driver) [L6035] return (tmp); [L6264] RET, EXPR max3421_driver_init() [L6264] ldv_retval_0 = max3421_driver_init() [L6265] COND TRUE ldv_retval_0 == 0 [L6266] ldv_state_variable_0 = 3 [L6267] ldv_state_variable_2 = 1 [L6268] CALL ldv_initialize_spi_driver_2() [L6159] void *tmp ; [L6161] CALL, EXPR ldv_zalloc(1496UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6161] RET, EXPR ldv_zalloc(1496UL) [L6161] tmp = ldv_zalloc(1496UL) [L6162] max3421_driver_group0 = (struct spi_device *)tmp [L6268] RET ldv_initialize_spi_driver_2() [L6269] ldv_state_variable_3 = 1 [L6270] CALL ldv_initialize_hc_driver_3() [L6122] void *tmp ; [L6123] void *tmp___0 ; [L6125] CALL, EXPR ldv_zalloc(192UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6125] RET, EXPR ldv_zalloc(192UL) [L6125] tmp = ldv_zalloc(192UL) [L6126] max3421_hcd_desc_group0 = (struct urb *)tmp [L6127] CALL, EXPR ldv_zalloc(968UL) [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); [L6127] RET, EXPR ldv_zalloc(968UL) [L6127] tmp___0 = ldv_zalloc(968UL) [L6128] max3421_hcd_desc_group1 = (struct usb_hcd *)tmp___0 [L6270] RET ldv_initialize_hc_driver_3() [L6273] COND FALSE !(ldv_retval_0 != 0) [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: [L6288] case 2: [L6289] COND TRUE ldv_state_variable_3 != 0 [L6290] tmp___9 = __VERIFIER_nondet_int() [L6292] case 0: [L6303] case 1: [L6315] case 2: [L6327] case 3: [L6339] case 4: [L6351] case 5: [L6363] case 6: [L6375] case 7: [L6387] case 8: [L6395] case 9: [L6407] case 10: [L6408] COND TRUE ldv_state_variable_3 == 1 [L6409] CALL max3421_urb_enqueue(max3421_hcd_desc_group1, max3421_hcd_desc_group0, ldvarg5) [L5535] struct spi_device *spi ; [L5536] struct spi_device *tmp ; [L5537] struct max3421_hcd *max3421_hcd ; [L5538] struct max3421_hcd *tmp___0 ; [L5539] struct max3421_ep *max3421_ep ; [L5540] unsigned long flags ; [L5541] int retval ; [L5542] void *tmp___1 ; [L5544] EXPR hcd->self.controller [L5544] CALL, EXPR to_spi_device(hcd->self.controller) [L4062] struct device const *__mptr ; [L4063] struct spi_device *tmp ; [L4065] COND FALSE !((unsigned long )dev != (unsigned long )((struct device *)0)) [L4069] tmp = (struct spi_device *)0 [L4071] return (tmp); [L5544] RET, EXPR to_spi_device(hcd->self.controller) [L5544] tmp = to_spi_device(hcd->self.controller) [L5545] spi = tmp [L5546] CALL, EXPR hcd_to_max3421(hcd) [L4223] return ((struct max3421_hcd *)(& hcd->hcd_priv)); [L5546] RET, EXPR hcd_to_max3421(hcd) [L5546] tmp___0 = hcd_to_max3421(hcd) [L5547] max3421_hcd = tmp___0 [L5548] urb->pipe [L5549] case 1U: [L5550] case 0U: [L5557] default: [L5561] CALL ldv_spin_lock() [L6582] ldv_spin = 1 [L5561] RET ldv_spin_lock() [L5562] EXPR urb->ep [L5562] EXPR (urb->ep)->hcpriv [L5562] max3421_ep = (struct max3421_ep *)(urb->ep)->hcpriv [L5563] COND TRUE (unsigned long )max3421_ep == (unsigned long )((struct max3421_ep *)0) [L5564] CALL kzalloc(40UL, mem_flags) [L6513] CALL ldv_check_alloc_flags(flags) [L6549] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) [L6551] CALL ldv_error() [L3987] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 146 procedures, 1423 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 154.9s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 128.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2695 SDtfs, 7588 SDslu, 4654 SDs, 0 SdLazy, 8356 SolverSat, 4281 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 94.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 31.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1666occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 3667 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 285 ConstructedInterpolants, 0 QuantifiedInterpolants, 232953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 87/87 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...