/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 14:25:13,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 14:25:13,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 14:25:13,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 14:25:13,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 14:25:13,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 14:25:13,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 14:25:13,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 14:25:13,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 14:25:13,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 14:25:13,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 14:25:13,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 14:25:13,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 14:25:13,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 14:25:13,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 14:25:13,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 14:25:13,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 14:25:13,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 14:25:13,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 14:25:13,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 14:25:13,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 14:25:13,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 14:25:13,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 14:25:13,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 14:25:13,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 14:25:13,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 14:25:13,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 14:25:13,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 14:25:13,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 14:25:13,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 14:25:13,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 14:25:13,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 14:25:13,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 14:25:13,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 14:25:13,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 14:25:13,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 14:25:13,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 14:25:13,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 14:25:13,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 14:25:13,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 14:25:13,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 14:25:13,220 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 [2020-10-14 14:25:13,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 14:25:13,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 14:25:13,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 14:25:13,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 14:25:13,265 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 14:25:13,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 14:25:13,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 14:25:13,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 14:25:13,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 14:25:13,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 14:25:13,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 14:25:13,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 14:25:13,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 14:25:13,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 14:25:13,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 14:25:13,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 14:25:13,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 14:25:13,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 14:25:13,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 14:25:13,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 14:25:13,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 14:25:13,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 14:25:13,270 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 14:25:13,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 14:25:13,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 14:25:13,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 14:25:13,628 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 14:25:13,629 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 14:25:13,630 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-14 14:25:13,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a6fd0891/4d2845666ace46fcb3b1e904db04f096/FLAG406729a4d [2020-10-14 14:25:14,416 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 14:25:14,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-14 14:25:14,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a6fd0891/4d2845666ace46fcb3b1e904db04f096/FLAG406729a4d [2020-10-14 14:25:14,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a6fd0891/4d2845666ace46fcb3b1e904db04f096 [2020-10-14 14:25:14,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 14:25:14,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 14:25:14,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 14:25:14,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 14:25:14,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 14:25:14,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:25:14" (1/1) ... [2020-10-14 14:25:14,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c563c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:14, skipping insertion in model container [2020-10-14 14:25:14,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:25:14" (1/1) ... [2020-10-14 14:25:14,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 14:25:14,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 14:25:15,152 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2471] [2020-10-14 14:25:15,153 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2472-2473] [2020-10-14 14:25:15,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:25:15,815 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 14:25:15,883 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2471] [2020-10-14 14:25:15,885 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2472-2473] [2020-10-14 14:25:16,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:25:16,213 INFO L208 MainTranslator]: Completed translation [2020-10-14 14:25:16,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16 WrapperNode [2020-10-14 14:25:16,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 14:25:16,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 14:25:16,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 14:25:16,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 14:25:16,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (1/1) ... [2020-10-14 14:25:16,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 14:25:16,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 14:25:16,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 14:25:16,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 14:25:16,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (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 [2020-10-14 14:25:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 14:25:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 14:25:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-14 14:25:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-14 14:25:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 14:25:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-14 14:25:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-14 14:25:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:25:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-14 14:25:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-14 14:25:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 14:25:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 14:25:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 14:25:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 14:25:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 14:25:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 14:25:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 14:25:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 14:25:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 14:25:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-14 14:25:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 14:25:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_resndata [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_simple [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_add_timer [2020-10-14 14:25:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_del_timer [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_output [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_io_loop [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_interrupt [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_timer [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_detect [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_open [2020-10-14 14:25:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_close [2020-10-14 14:25:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_open [2020-10-14 14:25:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_close [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_trigger [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_open [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_close [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_can_write [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_write_buffer [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_byte [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_write [2020-10-14 14:25:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_trigger [2020-10-14 14:25:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_free [2020-10-14 14:25:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_dev_free [2020-10-14 14:25:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_create [2020-10-14 14:25:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_substreams [2020-10-14 14:25:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_rmidi [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_probe [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_remove [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_unregister_all [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_card_serial_init [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_card_serial_exit [2020-10-14 14:25:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_snd_rawmidi_ops_5 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_snd_rawmidi_ops_4 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-14 14:25:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-14 14:25:16,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-14 14:25:16,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_3 [2020-10-14 14:25:16,620 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-14 14:25:16,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 14:25:16,621 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 14:25:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 14:25:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-14 14:25:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 14:25:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_19 [2020-10-14 14:25:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_20 [2020-10-14 14:25:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_21 [2020-10-14 14:25:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_22 [2020-10-14 14:25:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_23 [2020-10-14 14:25:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-14 14:25:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:25:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-14 14:25:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-14 14:25:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-14 14:25:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:25:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-14 14:25:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_full [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure release_and_free_resource [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2020-10-14 14:25:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_new [2020-10-14 14:25:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_register [2020-10-14 14:25:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_device_new [2020-10-14 14:25:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_new [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_receive [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit_ack [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit_peek [2020-10-14 14:25:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 14:25:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 14:25:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 14:25:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-14 14:25:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 14:25:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 14:25:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-14 14:25:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-14 14:25:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 14:25:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 14:25:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 14:25:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-14 14:25:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-14 14:25:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 14:25:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 14:25:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 14:25:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:25:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 14:25:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-14 14:25:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-14 14:25:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_19 [2020-10-14 14:25:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-14 14:25:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-14 14:25:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-14 14:25:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 14:25:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 14:25:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 14:25:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 14:25:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 14:25:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 14:25:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_snd_rawmidi_ops_5 [2020-10-14 14:25:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_snd_rawmidi_ops_4 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-14 14:25:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_3 [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_21 [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-14 14:25:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_20 [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_full [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_resndata [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 14:25:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_simple [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_23 [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_22 [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-14 14:25:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_new [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_register [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_device_new [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure release_and_free_resource [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_new [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_receive [2020-10-14 14:25:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit_peek [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit_ack [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_add_timer [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_del_timer [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_output [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_io_loop [2020-10-14 14:25:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_interrupt [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_timer [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_detect [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_open [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_close [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_open [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_close [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_trigger [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_open [2020-10-14 14:25:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_close [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_can_write [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_write_buffer [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_byte [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_write [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_trigger [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_free [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_dev_free [2020-10-14 14:25:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_create [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_substreams [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_rmidi [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_probe [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_remove [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_unregister_all [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_card_serial_init [2020-10-14 14:25:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_card_serial_exit [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-14 14:25:16,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-14 14:25:16,660 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 14:25:16,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 14:25:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 14:25:16,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 14:25:16,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 14:25:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 14:25:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 14:25:17,611 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 14:25:20,260 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 14:25:20,261 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 14:25:20,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:25:20 BoogieIcfgContainer [2020-10-14 14:25:20,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 14:25:20,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 14:25:20,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 14:25:20,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 14:25:20,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:25:14" (1/3) ... [2020-10-14 14:25:20,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e680dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:25:20, skipping insertion in model container [2020-10-14 14:25:20,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:16" (2/3) ... [2020-10-14 14:25:20,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e680dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:25:20, skipping insertion in model container [2020-10-14 14:25:20,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:25:20" (3/3) ... [2020-10-14 14:25:20,290 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-14 14:25:20,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 14:25:20,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 14:25:20,335 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 14:25:20,372 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 14:25:20,372 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 14:25:20,372 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 14:25:20,372 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 14:25:20,373 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 14:25:20,373 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 14:25:20,373 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 14:25:20,373 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 14:25:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states. [2020-10-14 14:25:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 14:25:20,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:25:20,452 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 14:25:20,453 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:25:20,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:25:20,458 INFO L82 PathProgramCache]: Analyzing trace with hash -428253486, now seen corresponding path program 1 times [2020-10-14 14:25:20,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:25:20,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275475122] [2020-10-14 14:25:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:25:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:21,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:21,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:21,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:21,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:23,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:26,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:26,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 14:25:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 14:25:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 14:25:26,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:26,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 14:25:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 14:25:27,273 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:25:27,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:25:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:27,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:27,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 14:25:27,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:27,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:27,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:25:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:27,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:27,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:25:27,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 14:25:27,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:27,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:27,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:27,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 14:25:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:27,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:27,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:25:27,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:27,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:27,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 14:25:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:27,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:27,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:25:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:25:27,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:27,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:27,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 14:25:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:27,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:27,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 14:25:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:27,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:27,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:27,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:27,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:25:27,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:27,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 14:25:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 14:25:27,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275475122] [2020-10-14 14:25:27,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:25:27,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 14:25:27,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881510025] [2020-10-14 14:25:27,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 14:25:27,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:25:27,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 14:25:27,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 14:25:27,708 INFO L87 Difference]: Start difference. First operand 928 states. Second operand 4 states. [2020-10-14 14:25:28,664 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:25:42,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:25:42,339 INFO L93 Difference]: Finished difference Result 2067 states and 2811 transitions. [2020-10-14 14:25:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 14:25:42,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 14:25:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:25:42,370 INFO L225 Difference]: With dead ends: 2067 [2020-10-14 14:25:42,370 INFO L226 Difference]: Without dead ends: 1138 [2020-10-14 14:25:42,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:25:42,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2020-10-14 14:25:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 884. [2020-10-14 14:25:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-10-14 14:25:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1154 transitions. [2020-10-14 14:25:42,679 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1154 transitions. Word has length 53 [2020-10-14 14:25:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:25:42,679 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1154 transitions. [2020-10-14 14:25:42,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 14:25:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1154 transitions. [2020-10-14 14:25:42,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 14:25:42,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:25:42,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:25:42,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 14:25:42,687 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:25:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:25:42,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1851283562, now seen corresponding path program 1 times [2020-10-14 14:25:42,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:25:42,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827953423] [2020-10-14 14:25:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:25:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:43,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:47,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 14:25:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 14:25:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 14:25:47,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:47,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:47,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:25:47,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 14:25:47,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 14:25:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:48,796 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:25:48,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:25:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:48,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:48,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:48,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 14:25:48,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:48,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:48,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:48,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:49,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:25:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:49,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:49,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:25:49,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:25:49,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:49,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 14:25:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:49,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:49,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:49,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:25:49,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:49,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:49,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:49,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 14:25:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:49,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:49,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:25:49,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:25:49,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:49,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:49,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:49,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:25:49,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:49,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:49,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 14:25:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:49,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:49,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:25:49,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:25:49,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:49,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:25:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:49,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 14:25:49,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827953423] [2020-10-14 14:25:49,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:25:49,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 14:25:49,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607687634] [2020-10-14 14:25:49,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 14:25:49,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:25:49,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 14:25:49,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:25:49,122 INFO L87 Difference]: Start difference. First operand 884 states and 1154 transitions. Second operand 5 states. [2020-10-14 14:25:50,023 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:25:51,262 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 432 [2020-10-14 14:25:56,290 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2020-10-14 14:26:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:26:12,554 INFO L93 Difference]: Finished difference Result 2746 states and 3740 transitions. [2020-10-14 14:26:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 14:26:12,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-14 14:26:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:26:12,581 INFO L225 Difference]: With dead ends: 2746 [2020-10-14 14:26:12,581 INFO L226 Difference]: Without dead ends: 1872 [2020-10-14 14:26:12,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:26:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2020-10-14 14:26:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1418. [2020-10-14 14:26:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2020-10-14 14:26:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1880 transitions. [2020-10-14 14:26:12,881 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1880 transitions. Word has length 55 [2020-10-14 14:26:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:26:12,881 INFO L479 AbstractCegarLoop]: Abstraction has 1418 states and 1880 transitions. [2020-10-14 14:26:12,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 14:26:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1880 transitions. [2020-10-14 14:26:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 14:26:12,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:26:12,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:26:12,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 14:26:12,891 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:26:12,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:26:12,891 INFO L82 PathProgramCache]: Analyzing trace with hash 98645734, now seen corresponding path program 1 times [2020-10-14 14:26:12,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:26:12,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058248477] [2020-10-14 14:26:12,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:26:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:13,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:13,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:14,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:18,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:18,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 14:26:18,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 14:26:18,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 14:26:18,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:18,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:18,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:26:18,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 14:26:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:26:18,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:18,938 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:26:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:26:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:19,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 14:26:19,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:26:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:26:19,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:26:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:19,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:26:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 14:26:19,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 14:26:19,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 14:26:19,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 14:26:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:19,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:26:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:26:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:26:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:26:19,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:26:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:26:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 14:26:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:19,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:26:19,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:26:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 14:26:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:26:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:26:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:26:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 14:26:19,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 14:26:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:19,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:19,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:19,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:26:19,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:26:19,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:19,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:26:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 14:26:19,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058248477] [2020-10-14 14:26:19,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:26:19,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 14:26:19,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057018785] [2020-10-14 14:26:19,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 14:26:19,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:26:19,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 14:26:19,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:26:19,447 INFO L87 Difference]: Start difference. First operand 1418 states and 1880 transitions. Second operand 9 states. [2020-10-14 14:26:20,286 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:26:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:26:40,103 INFO L93 Difference]: Finished difference Result 3454 states and 4783 transitions. [2020-10-14 14:26:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 14:26:40,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 14:26:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:26:40,118 INFO L225 Difference]: With dead ends: 3454 [2020-10-14 14:26:40,119 INFO L226 Difference]: Without dead ends: 2046 [2020-10-14 14:26:40,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 14:26:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2020-10-14 14:26:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 1419. [2020-10-14 14:26:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1419 states. [2020-10-14 14:26:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1881 transitions. [2020-10-14 14:26:40,338 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1881 transitions. Word has length 92 [2020-10-14 14:26:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:26:40,339 INFO L479 AbstractCegarLoop]: Abstraction has 1419 states and 1881 transitions. [2020-10-14 14:26:40,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 14:26:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1881 transitions. [2020-10-14 14:26:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 14:26:40,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:26:40,346 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:26:40,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 14:26:40,346 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:26:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:26:40,347 INFO L82 PathProgramCache]: Analyzing trace with hash 800245608, now seen corresponding path program 1 times [2020-10-14 14:26:40,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:26:40,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977615004] [2020-10-14 14:26:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:26:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:40,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:40,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:45,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:45,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 14:26:45,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 14:26:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-14 14:26:45,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:45,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:26:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 14:26:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:26:45,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:46,404 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:26:46,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:26:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 14:26:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:26:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:26:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:26:46,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:26:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 14:26:46,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 14:26:46,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 14:26:46,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:26:46,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:46,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:26:46,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:26:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:26:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:26:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:26:46,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:26:46,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 14:26:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:46,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:26:46,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:26:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 14:26:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:26:46,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:26:46,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:26:46,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 14:26:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:46,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:46,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:26:46,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:26:46,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:46,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:46,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:26:46,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 14:26:46,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977615004] [2020-10-14 14:26:46,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:26:46,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 14:26:46,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011061890] [2020-10-14 14:26:46,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 14:26:46,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:26:46,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 14:26:46,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:26:46,966 INFO L87 Difference]: Start difference. First operand 1419 states and 1881 transitions. Second operand 9 states. [2020-10-14 14:26:48,092 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:27:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:27:10,098 INFO L93 Difference]: Finished difference Result 3457 states and 4786 transitions. [2020-10-14 14:27:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 14:27:10,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 14:27:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:27:10,112 INFO L225 Difference]: With dead ends: 3457 [2020-10-14 14:27:10,112 INFO L226 Difference]: Without dead ends: 2048 [2020-10-14 14:27:10,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 14:27:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2020-10-14 14:27:10,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1420. [2020-10-14 14:27:10,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-10-14 14:27:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1882 transitions. [2020-10-14 14:27:10,383 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1882 transitions. Word has length 92 [2020-10-14 14:27:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:27:10,383 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 1882 transitions. [2020-10-14 14:27:10,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 14:27:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1882 transitions. [2020-10-14 14:27:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 14:27:10,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:27:10,390 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:27:10,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 14:27:10,390 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:27:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:27:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash 727859050, now seen corresponding path program 1 times [2020-10-14 14:27:10,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:27:10,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189916588] [2020-10-14 14:27:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:27:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:10,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:27:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-14 14:27:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:27:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:17,020 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:27:17,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:27:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 14:27:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:27:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:27:17,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:27:17,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:27:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 14:27:17,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 14:27:17,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:17,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 14:27:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:17,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:17,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:27:17,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:27:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:27:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:27:17,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:27:17,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:27:17,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 14:27:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:17,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:27:17,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:27:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 14:27:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:27:17,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 14:27:17,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:27:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:17,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 14:27:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:17,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:17,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:17,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:27:17,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:17,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 14:27:17,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:17,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:17,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:27:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:17,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 14:27:17,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189916588] [2020-10-14 14:27:17,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:27:17,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 14:27:17,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819079896] [2020-10-14 14:27:17,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 14:27:17,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:27:17,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 14:27:17,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:27:17,622 INFO L87 Difference]: Start difference. First operand 1420 states and 1882 transitions. Second operand 9 states. [2020-10-14 14:27:18,568 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:27:20,108 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 432 [2020-10-14 14:27:22,271 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2020-10-14 14:27:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:27:39,707 INFO L93 Difference]: Finished difference Result 3458 states and 4782 transitions. [2020-10-14 14:27:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 14:27:39,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-14 14:27:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:27:39,727 INFO L225 Difference]: With dead ends: 3458 [2020-10-14 14:27:39,727 INFO L226 Difference]: Without dead ends: 2048 [2020-10-14 14:27:39,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-14 14:27:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2020-10-14 14:27:40,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1420. [2020-10-14 14:27:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-10-14 14:27:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1880 transitions. [2020-10-14 14:27:40,061 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1880 transitions. Word has length 92 [2020-10-14 14:27:40,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:27:40,064 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 1880 transitions. [2020-10-14 14:27:40,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 14:27:40,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1880 transitions. [2020-10-14 14:27:40,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 14:27:40,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:27:40,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:27:40,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 14:27:40,072 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:27:40,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:27:40,072 INFO L82 PathProgramCache]: Analyzing trace with hash -587725196, now seen corresponding path program 1 times [2020-10-14 14:27:40,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:27:40,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422286015] [2020-10-14 14:27:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:27:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:45,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:45,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 14:27:45,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:27:45,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 14:27:45,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:45,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:45,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 14:27:45,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 14:27:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 14:27:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,215 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:27:46,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:27:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:46,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:27:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:27:46,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:27:46,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:46,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:27:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 14:27:46,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 14:27:46,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 14:27:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 14:27:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:46,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 14:27:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:27:46,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:46,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:46,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:27:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:27:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:27:46,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:27:46,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:27:46,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:27:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 14:27:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:27:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:27:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 14:27:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:27:46,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:27:46,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 14:27:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:27:46,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 14:27:46,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 14:27:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:27:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:27:46,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:27:46,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:27:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:27:46,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 14:27:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:27:46,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:27:46,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:27:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 14:27:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:27:46,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:27:46,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:27:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 14:27:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:27:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:27:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:27:46,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:27:46,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:27:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:27:46,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:27:46,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:27:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:27:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:27:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:27:46,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:27:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 14:27:46,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422286015] [2020-10-14 14:27:46,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:27:46,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 14:27:46,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441885603] [2020-10-14 14:27:46,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 14:27:46,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:27:46,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 14:27:46,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-14 14:27:46,924 INFO L87 Difference]: Start difference. First operand 1420 states and 1880 transitions. Second operand 13 states. [2020-10-14 14:27:47,877 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-14 14:28:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:28:20,445 INFO L93 Difference]: Finished difference Result 3423 states and 4737 transitions. [2020-10-14 14:28:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 14:28:20,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-14 14:28:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:28:20,458 INFO L225 Difference]: With dead ends: 3423 [2020-10-14 14:28:20,459 INFO L226 Difference]: Without dead ends: 1969 [2020-10-14 14:28:20,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2020-10-14 14:28:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-10-14 14:28:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1359. [2020-10-14 14:28:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2020-10-14 14:28:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1812 transitions. [2020-10-14 14:28:20,844 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1812 transitions. Word has length 113 [2020-10-14 14:28:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:28:20,845 INFO L479 AbstractCegarLoop]: Abstraction has 1359 states and 1812 transitions. [2020-10-14 14:28:20,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 14:28:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1812 transitions. [2020-10-14 14:28:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 14:28:20,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:28:20,852 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:28:20,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 14:28:20,853 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:28:20,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:28:20,853 INFO L82 PathProgramCache]: Analyzing trace with hash 82240525, now seen corresponding path program 1 times [2020-10-14 14:28:20,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:28:20,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277709462] [2020-10-14 14:28:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:28:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:20,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:21,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:26,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:26,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 14:28:26,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:28:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 14:28:26,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:26,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:28:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 14:28:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:28:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:28:27,075 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-14 14:28:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:28:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:28:27,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:28:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:28:27,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:28:27,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:28:27,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:28:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 14:28:27,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:28:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 14:28:27,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:28:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 14:28:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 14:28:27,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:28:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:28:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 14:28:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:28:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:28:27,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:28:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:28:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 14:28:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:28:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 14:28:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 14:28:27,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:28:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:28:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:28:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 14:28:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:28:27,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:28:27,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:28:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:28:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 14:28:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:28:27,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:28:27,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:28:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 14:28:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:28:27,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:28:27,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:28:27,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 14:28:27,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:28:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:28:27,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:28:27,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:28:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:28:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 14:28:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:28:27,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:28:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 14:28:27,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277709462] [2020-10-14 14:28:27,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:28:27,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 14:28:27,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916288609] [2020-10-14 14:28:27,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 14:28:27,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:28:27,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 14:28:27,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 14:28:27,657 INFO L87 Difference]: Start difference. First operand 1359 states and 1812 transitions. Second operand 11 states. [2020-10-14 14:28:28,570 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 430