/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-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 0.1.25-adbd35c [2020-10-13 00:58:23,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 00:58:24,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 00:58:24,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 00:58:24,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 00:58:24,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 00:58:24,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 00:58:24,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 00:58:24,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 00:58:24,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 00:58:24,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 00:58:24,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 00:58:24,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 00:58:24,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 00:58:24,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 00:58:24,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 00:58:24,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 00:58:24,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 00:58:24,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 00:58:24,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 00:58:24,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 00:58:24,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 00:58:24,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 00:58:24,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 00:58:24,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 00:58:24,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 00:58:24,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 00:58:24,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 00:58:24,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 00:58:24,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 00:58:24,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 00:58:24,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 00:58:24,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 00:58:24,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 00:58:24,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 00:58:24,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 00:58:24,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 00:58:24,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 00:58:24,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 00:58:24,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 00:58:24,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 00:58:24,109 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 [2020-10-13 00:58:24,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 00:58:24,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 00:58:24,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 00:58:24,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 00:58:24,149 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 00:58:24,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 00:58:24,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 00:58:24,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 00:58:24,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 00:58:24,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 00:58:24,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 00:58:24,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 00:58:24,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 00:58:24,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 00:58:24,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 00:58:24,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 00:58:24,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 00:58:24,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 00:58:24,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:58:24,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 00:58:24,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 00:58:24,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 00:58:24,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 00:58:24,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 00:58:24,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 00:58:24,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 00:58:24,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 00:58:24,155 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 00:58:24,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 00:58:24,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 00:58:24,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 00:58:24,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 00:58:24,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 00:58:24,497 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-13 00:58:24,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8980377f3/6ea84bf80d6b49cc818e70346efefb77/FLAGacff30f4e [2020-10-13 00:58:25,361 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 00:58:25,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-13 00:58:25,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8980377f3/6ea84bf80d6b49cc818e70346efefb77/FLAGacff30f4e [2020-10-13 00:58:25,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8980377f3/6ea84bf80d6b49cc818e70346efefb77 [2020-10-13 00:58:25,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 00:58:25,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 00:58:25,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 00:58:25,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 00:58:25,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 00:58:25,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:25" (1/1) ... [2020-10-13 00:58:25,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4943b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:25, skipping insertion in model container [2020-10-13 00:58:25,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:25" (1/1) ... [2020-10-13 00:58:25,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 00:58:26,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 00:58:26,618 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3703] [2020-10-13 00:58:26,619 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3704-3705] [2020-10-13 00:58:27,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:58:27,786 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 00:58:27,874 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3703] [2020-10-13 00:58:27,875 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3704-3705] [2020-10-13 00:58:28,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:58:28,284 INFO L208 MainTranslator]: Completed translation [2020-10-13 00:58:28,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28 WrapperNode [2020-10-13 00:58:28,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 00:58:28,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 00:58:28,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 00:58:28,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 00:58:28,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (1/1) ... [2020-10-13 00:58:28,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 00:58:28,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 00:58:28,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 00:58:28,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 00:58:28,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (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 [2020-10-13 00:58:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 00:58:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 00:58:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 00:58:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 00:58:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-13 00:58:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2020-10-13 00:58:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-13 00:58:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-13 00:58:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-13 00:58:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 00:58:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 00:58:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 00:58:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-13 00:58:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 00:58:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-13 00:58:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 00:58:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 00:58:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 00:58:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 00:58:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 00:58:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 00:58:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 00:58:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 00:58:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 00:58:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-13 00:58:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-10-13 00:58:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-10-13 00:58:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-10-13 00:58:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-10-13 00:58:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2020-10-13 00:58:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2020-10-13 00:58:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_control [2020-10-13 00:58:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2020-10-13 00:58:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 00:58:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_in [2020-10-13 00:58:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_out [2020-10-13 00:58:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-13 00:58:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_diff [2020-10-13 00:58:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_max3421 [2020-10-13 00:58:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_to_hcd [2020-10-13 00:58:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd8 [2020-10-13 00:58:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr8 [2020-10-13 00:58:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd_buf [2020-10-13 00:58:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr_buf [2020-10-13 00:58:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_speed [2020-10-13 00:58:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_address [2020-10-13 00:58:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_ctrl_setup [2020-10-13 00:58:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in [2020-10-13 00:58:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out [2020-10-13 00:58:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_next_transfer [2020-10-13 00:58:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_select_and_start_urb [2020-10-13 00:58:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_check_unlink [2020-10-13 00:58:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_slow_retransmit [2020-10-13 00:58:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_recv_data_available [2020-10-13 00:58:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_error [2020-10-13 00:58:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in_done [2020-10-13 00:58:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out_done [2020-10-13 00:58:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_host_transfer_done [2020-10-13 00:58:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_detect_conn [2020-10-13 00:58:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_irq_handler [2020-10-13 00:58:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_irqs [2020-10-13 00:58:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_hcd [2020-10-13 00:58:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_done [2020-10-13 00:58:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_spi_thread [2020-10-13 00:58:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_port [2020-10-13 00:58:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset [2020-10-13 00:58:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_start [2020-10-13 00:58:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_stop [2020-10-13 00:58:28,787 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_enqueue [2020-10-13 00:58:28,788 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_dequeue [2020-10-13 00:58:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_endpoint_disable [2020-10-13 00:58:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_get_frame_number [2020-10-13 00:58:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_status_data [2020-10-13 00:58:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_descriptor [2020-10-13 00:58:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_gpout_set_value [2020-10-13 00:58:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_control [2020-10-13 00:58:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_suspend [2020-10-13 00:58:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_resume [2020-10-13 00:58:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_map_urb_for_dma [2020-10-13 00:58:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_unmap_urb_for_dma [2020-10-13 00:58:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_probe [2020-10-13 00:58:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_remove [2020-10-13 00:58:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_init [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_exit [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hc_driver_3 [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 00:58:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_2 [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_19 [2020-10-13 00:58:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_20 [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-13 00:58:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2020-10-13 00:58:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 00:58:28,796 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 00:58:28,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 00:58:28,797 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2020-10-13 00:58:28,797 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-10-13 00:58:28,797 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2020-10-13 00:58:28,798 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 00:58:28,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-13 00:58:28,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-13 00:58:28,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2020-10-13 00:58:28,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2020-10-13 00:58:28,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 00:58:28,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 00:58:28,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-13 00:58:28,801 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-13 00:58:28,802 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-13 00:58:28,806 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 00:58:28,806 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 00:58:28,807 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-13 00:58:28,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-10-13 00:58:28,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-10-13 00:58:28,808 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-10-13 00:58:28,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_hcd [2020-10-13 00:58:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_create_hcd [2020-10-13 00:58:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_check_unlink_urb [2020-10-13 00:58:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2020-10-13 00:58:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2020-10-13 00:58:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2020-10-13 00:58:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2020-10-13 00:58:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2020-10-13 00:58:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2020-10-13 00:58:28,812 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-13 00:58:28,820 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 00:58:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 00:58:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 00:58:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 00:58:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 00:58:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 00:58:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-13 00:58:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-13 00:58:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 00:58:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 00:58:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-13 00:58:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-13 00:58:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 00:58:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 00:58:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 00:58:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-13 00:58:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 00:58:28,826 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2020-10-13 00:58:28,826 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-13 00:58:28,826 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2020-10-13 00:58:28,826 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-13 00:58:28,827 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-13 00:58:28,827 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 00:58:28,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-13 00:58:28,827 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 00:58:28,827 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-13 00:58:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 00:58:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-10-13 00:58:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 00:58:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 00:58:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 00:58:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 00:58:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 00:58:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-13 00:58:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 00:58:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 00:58:28,831 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 00:58:28,831 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-13 00:58:28,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-13 00:58:28,832 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 00:58:28,832 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 00:58:28,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-13 00:58:28,832 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 00:58:28,832 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 00:58:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 00:58:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2020-10-13 00:58:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 00:58:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 00:58:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 00:58:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 00:58:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 00:58:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 00:58:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 00:58:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 00:58:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 00:58:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 00:58:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 00:58:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 00:58:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 00:58:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 00:58:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hc_driver_3 [2020-10-13 00:58:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 00:58:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_2 [2020-10-13 00:58:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 00:58:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-10-13 00:58:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-13 00:58:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 00:58:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 00:58:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-13 00:58:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-13 00:58:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2020-10-13 00:58:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-13 00:58:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2020-10-13 00:58:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2020-10-13 00:58:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-10-13 00:58:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-10-13 00:58:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-10-13 00:58:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2020-10-13 00:58:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 00:58:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2020-10-13 00:58:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_control [2020-10-13 00:58:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2020-10-13 00:58:28,842 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-13 00:58:28,842 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 00:58:28,842 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 00:58:28,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_19 [2020-10-13 00:58:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 00:58:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_20 [2020-10-13 00:58:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2020-10-13 00:58:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2020-10-13 00:58:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_in [2020-10-13 00:58:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_out [2020-10-13 00:58:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-13 00:58:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 00:58:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2020-10-13 00:58:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_check_unlink_urb [2020-10-13 00:58:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2020-10-13 00:58:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2020-10-13 00:58:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_create_hcd [2020-10-13 00:58:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2020-10-13 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_hcd [2020-10-13 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2020-10-13 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2020-10-13 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure frame_diff [2020-10-13 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_max3421 [2020-10-13 00:58:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_to_hcd [2020-10-13 00:58:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd8 [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr8 [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd_buf [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr_buf [2020-10-13 00:58:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_speed [2020-10-13 00:58:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_address [2020-10-13 00:58:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_ctrl_setup [2020-10-13 00:58:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in [2020-10-13 00:58:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out [2020-10-13 00:58:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_next_transfer [2020-10-13 00:58:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_select_and_start_urb [2020-10-13 00:58:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_check_unlink [2020-10-13 00:58:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_slow_retransmit [2020-10-13 00:58:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_recv_data_available [2020-10-13 00:58:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_error [2020-10-13 00:58:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in_done [2020-10-13 00:58:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out_done [2020-10-13 00:58:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_host_transfer_done [2020-10-13 00:58:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_detect_conn [2020-10-13 00:58:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_irq_handler [2020-10-13 00:58:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_irqs [2020-10-13 00:58:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_hcd [2020-10-13 00:58:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_done [2020-10-13 00:58:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_spi_thread [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_port [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_start [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_stop [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_enqueue [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_dequeue [2020-10-13 00:58:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_endpoint_disable [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_get_frame_number [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_status_data [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure hub_descriptor [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_gpout_set_value [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_control [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_suspend [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_resume [2020-10-13 00:58:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_map_urb_for_dma [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_unmap_urb_for_dma [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_probe [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_remove [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_init [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_exit [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 00:58:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 00:58:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 00:58:28,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 00:58:28,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 00:58:30,371 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 00:58:35,754 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 00:58:35,754 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 00:58:35,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:35 BoogieIcfgContainer [2020-10-13 00:58:35,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 00:58:35,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 00:58:35,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 00:58:35,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 00:58:35,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:58:25" (1/3) ... [2020-10-13 00:58:35,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353569b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:35, skipping insertion in model container [2020-10-13 00:58:35,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:28" (2/3) ... [2020-10-13 00:58:35,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353569b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:35, skipping insertion in model container [2020-10-13 00:58:35,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:35" (3/3) ... [2020-10-13 00:58:35,779 INFO L109 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 [2020-10-13 00:58:35,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 00:58:35,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 00:58:35,816 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 00:58:35,847 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 00:58:35,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 00:58:35,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 00:58:35,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 00:58:35,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 00:58:35,848 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 00:58:35,848 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 00:58:35,848 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 00:58:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states. [2020-10-13 00:58:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 00:58:35,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:58:35,940 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] [2020-10-13 00:58:35,941 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:58:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:58:35,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1404989794, now seen corresponding path program 1 times [2020-10-13 00:58:35,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:58:35,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307805169] [2020-10-13 00:58:35,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:58:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:36,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:37,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:41,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:41,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 00:58:41,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:58:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-13 00:58:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:58:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 00:58:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 00:58:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 00:58:44,112 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 00:58:44,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:58:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:58:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-13 00:58:44,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:58:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:58:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:58:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:58:44,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:58:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:58:44,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:58:44,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:58:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:58:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:58:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:58:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 00:58:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:58:44,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 00:58:44,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 00:58:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:58:44,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 00:58:44,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:58:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 00:58:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:58:44,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:58:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:58:44,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:58:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:58:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:58:44,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:58:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:58:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:58:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:58:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:58:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 00:58:44,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307805169] [2020-10-13 00:58:44,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:58:44,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 00:58:44,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813209125] [2020-10-13 00:58:44,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 00:58:44,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:58:44,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 00:58:44,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 00:58:44,744 INFO L87 Difference]: Start difference. First operand 1382 states. Second operand 6 states. [2020-10-13 00:58:46,945 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 00:59:03,836 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 635 [2020-10-13 00:59:12,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:59:12,512 INFO L93 Difference]: Finished difference Result 1917 states and 2769 transitions. [2020-10-13 00:59:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 00:59:12,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-13 00:59:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:59:12,560 INFO L225 Difference]: With dead ends: 1917 [2020-10-13 00:59:12,560 INFO L226 Difference]: Without dead ends: 1152 [2020-10-13 00:59:12,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 00:59:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-10-13 00:59:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 685. [2020-10-13 00:59:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-10-13 00:59:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 888 transitions. [2020-10-13 00:59:12,942 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 888 transitions. Word has length 77 [2020-10-13 00:59:12,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:59:12,943 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 888 transitions. [2020-10-13 00:59:12,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 00:59:12,943 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 888 transitions. [2020-10-13 00:59:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 00:59:12,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:59:12,950 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] [2020-10-13 00:59:12,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 00:59:12,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:59:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:59:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash 895832796, now seen corresponding path program 1 times [2020-10-13 00:59:12,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:59:12,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757086404] [2020-10-13 00:59:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:59:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:13,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:13,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:16,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:16,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 00:59:16,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:59:16,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3185 [2020-10-13 00:59:16,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:59:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 00:59:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 00:59:16,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:18,511 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 00:59:18,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:59:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:18,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:18,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 00:59:18,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:59:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:18,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:18,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:18,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:18,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:18,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:59:18,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:18,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:18,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:59:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:18,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:18,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:18,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:18,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:59:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:18,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:59:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:18,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:18,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:59:18,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:19,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:59:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:19,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:19,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 00:59:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:59:19,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:59:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 00:59:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:19,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 00:59:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:19,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:19,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:59:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:59:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 00:59:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:19,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:19,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:19,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:59:19,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:59:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 00:59:19,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757086404] [2020-10-13 00:59:19,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:59:19,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 00:59:19,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861223836] [2020-10-13 00:59:19,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 00:59:19,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:59:19,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 00:59:19,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 00:59:19,134 INFO L87 Difference]: Start difference. First operand 685 states and 888 transitions. Second operand 6 states. [2020-10-13 00:59:21,342 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 00:59:26,288 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 636 [2020-10-13 00:59:28,679 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-13 00:59:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:59:49,504 INFO L93 Difference]: Finished difference Result 2505 states and 3597 transitions. [2020-10-13 00:59:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 00:59:49,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-13 00:59:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:59:49,520 INFO L225 Difference]: With dead ends: 2505 [2020-10-13 00:59:49,520 INFO L226 Difference]: Without dead ends: 1836 [2020-10-13 00:59:49,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 00:59:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-10-13 00:59:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1056. [2020-10-13 00:59:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2020-10-13 00:59:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1343 transitions. [2020-10-13 00:59:49,886 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1343 transitions. Word has length 77 [2020-10-13 00:59:49,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:59:49,887 INFO L479 AbstractCegarLoop]: Abstraction has 1056 states and 1343 transitions. [2020-10-13 00:59:49,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 00:59:49,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1343 transitions. [2020-10-13 00:59:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 00:59:49,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:59:49,890 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] [2020-10-13 00:59:49,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 00:59:49,891 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:59:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:59:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1181856091, now seen corresponding path program 1 times [2020-10-13 00:59:49,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:59:49,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502760111] [2020-10-13 00:59:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:59:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:50,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:55,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 00:59:55,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:59:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5303 [2020-10-13 00:59:55,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 00:59:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 00:59:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 00:59:55,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:59:57,807 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 00:59:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:59:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:58,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 00:59:58,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:59:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:58,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:59:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:59:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:59:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:58,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:59:58,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:59:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 00:59:58,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 00:59:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:58,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:59:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 00:59:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:58,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:59:58,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 00:59:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 00:59:58,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 00:59:58,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:59:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 00:59:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:59:58,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:59:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:59:58,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 00:59:58,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:59:58,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:59:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:59:58,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:59:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 00:59:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:58,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:59:58,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:59:58,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:59:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 00:59:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:58,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:59:58,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:59:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:59:58,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 00:59:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:59:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:59:58,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:59:58,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:59:58,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:59:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 00:59:58,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:59:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:59:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:59:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:59:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:59:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 00:59:58,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502760111] [2020-10-13 00:59:58,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:59:58,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 00:59:58,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805987312] [2020-10-13 00:59:58,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 00:59:58,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:59:58,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 00:59:58,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 00:59:58,625 INFO L87 Difference]: Start difference. First operand 1056 states and 1343 transitions. Second operand 11 states. [2020-10-13 01:00:00,887 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 640 [2020-10-13 01:00:14,548 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 647 [2020-10-13 01:00:18,957 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-13 01:00:21,485 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-13 01:00:23,873 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-13 01:00:26,557 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification that was a NOOP. DAG size: 653 [2020-10-13 01:00:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:00:44,952 INFO L93 Difference]: Finished difference Result 2846 states and 3915 transitions. [2020-10-13 01:00:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 01:00:44,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-10-13 01:00:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:00:44,964 INFO L225 Difference]: With dead ends: 2846 [2020-10-13 01:00:44,965 INFO L226 Difference]: Without dead ends: 1806 [2020-10-13 01:00:44,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-13 01:00:44,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2020-10-13 01:00:45,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1072. [2020-10-13 01:00:45,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-13 01:00:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1361 transitions. [2020-10-13 01:00:45,271 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1361 transitions. Word has length 82 [2020-10-13 01:00:45,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:00:45,272 INFO L479 AbstractCegarLoop]: Abstraction has 1072 states and 1361 transitions. [2020-10-13 01:00:45,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 01:00:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1361 transitions. [2020-10-13 01:00:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-13 01:00:45,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:00:45,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 01:00:45,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 01:00:45,276 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:00:45,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:00:45,277 INFO L82 PathProgramCache]: Analyzing trace with hash 201290877, now seen corresponding path program 1 times [2020-10-13 01:00:45,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:00:45,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154197751] [2020-10-13 01:00:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:00:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:45,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:47,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:50,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:50,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 01:00:50,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 01:00:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5317 [2020-10-13 01:00:50,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 01:00:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:00:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 01:00:50,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:53,149 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 01:00:53,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:00:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:53,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:53,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:53,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-13 01:00:53,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:53,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 01:00:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:00:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 01:00:54,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:00:54,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:00:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 01:00:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:00:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:00:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 01:00:54,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:00:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:00:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:00:54,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 01:00:54,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 01:00:54,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 01:00:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:54,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 01:00:54,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:00:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 01:00:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:00:54,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 01:00:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 01:00:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 01:00:54,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 01:00:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:00:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 01:00:54,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 01:00:54,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:00:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:00:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 01:00:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 01:00:54,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:00:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:00:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 01:00:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:00:54,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 01:00:54,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:00:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:00:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:00:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:00:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:00:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:00:54,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 01:00:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:00:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 01:00:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:00:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:00:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 01:00:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:54,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:00:54,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:00:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:00:54,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 01:00:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 01:00:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:00:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 01:00:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:00:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:00:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:00:54,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:00:54,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:00:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 01:00:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:00:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:00:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:00:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:00:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:00:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 01:00:54,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154197751] [2020-10-13 01:00:54,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:00:54,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 01:00:54,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550111481] [2020-10-13 01:00:54,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 01:00:54,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:00:54,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 01:00:54,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 01:00:54,623 INFO L87 Difference]: Start difference. First operand 1072 states and 1361 transitions. Second operand 7 states. [2020-10-13 01:00:57,125 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 640 [2020-10-13 01:01:03,612 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification that was a NOOP. DAG size: 643 [2020-10-13 01:01:05,933 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 01:01:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:01:26,065 INFO L93 Difference]: Finished difference Result 1825 states and 2583 transitions. [2020-10-13 01:01:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 01:01:26,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-10-13 01:01:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:01:26,078 INFO L225 Difference]: With dead ends: 1825 [2020-10-13 01:01:26,079 INFO L226 Difference]: Without dead ends: 1822 [2020-10-13 01:01:26,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-13 01:01:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-10-13 01:01:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1094. [2020-10-13 01:01:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2020-10-13 01:01:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1375 transitions. [2020-10-13 01:01:26,417 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1375 transitions. Word has length 102 [2020-10-13 01:01:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:01:26,418 INFO L479 AbstractCegarLoop]: Abstraction has 1094 states and 1375 transitions. [2020-10-13 01:01:26,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 01:01:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1375 transitions. [2020-10-13 01:01:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 01:01:26,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:01:26,422 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] [2020-10-13 01:01:26,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 01:01:26,422 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:01:26,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:01:26,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1966260411, now seen corresponding path program 1 times [2020-10-13 01:01:26,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:01:26,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716383993] [2020-10-13 01:01:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:01:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:26,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3037 [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 01:01:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 01:01:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:32,722 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 01:01:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:01:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:32,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:32,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:01:32,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 01:01:32,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:32,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:32,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:32,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:01:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:32,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:32,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:32,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:32,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:32,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:01:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:33,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:01:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:33,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 01:01:33,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:01:33,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:01:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:01:33,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:33,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 01:01:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:01:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 01:01:33,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:01:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:01:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:01:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 01:01:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 01:01:33,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:01:33,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:01:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:33,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:33,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 01:01:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 01:01:33,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 01:01:33,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:01:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 01:01:33,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:01:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:33,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:33,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 01:01:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:01:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:33,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:01:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 01:01:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 01:01:33,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 01:01:33,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 01:01:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 01:01:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:01:33,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:01:33,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:01:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 01:01:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:01:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:01:33,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:01:33,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:01:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:01:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 01:01:33,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716383993] [2020-10-13 01:01:33,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:01:33,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 01:01:33,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240291512] [2020-10-13 01:01:33,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 01:01:33,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:01:33,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 01:01:33,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 01:01:33,384 INFO L87 Difference]: Start difference. First operand 1094 states and 1375 transitions. Second operand 8 states. [2020-10-13 01:01:35,699 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 01:01:50,993 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification that was a NOOP. DAG size: 636 [2020-10-13 01:01:53,406 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 633