/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 05:15:45,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 05:15:45,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 05:15:45,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 05:15:45,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 05:15:45,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 05:15:45,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 05:15:45,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 05:15:45,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 05:15:45,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 05:15:45,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 05:15:45,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 05:15:45,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 05:15:45,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 05:15:45,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 05:15:45,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 05:15:45,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 05:15:45,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 05:15:45,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 05:15:45,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 05:15:45,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 05:15:45,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 05:15:45,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 05:15:45,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 05:15:45,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 05:15:45,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 05:15:45,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 05:15:45,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 05:15:45,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 05:15:45,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 05:15:45,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 05:15:45,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 05:15:45,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 05:15:45,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 05:15:46,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 05:15:46,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 05:15:46,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 05:15:46,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 05:15:46,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 05:15:46,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 05:15:46,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 05:15:46,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 05:15:46,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 05:15:46,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 05:15:46,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 05:15:46,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 05:15:46,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 05:15:46,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 05:15:46,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 05:15:46,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 05:15:46,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 05:15:46,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 05:15:46,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 05:15:46,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 05:15:46,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 05:15:46,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 05:15:46,044 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 05:15:46,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 05:15:46,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 05:15:46,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 05:15:46,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 05:15:46,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 05:15:46,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-28 05:15:46,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cb2a96cc/6691cb35376349bb824d8308c084a4f3/FLAGf7c570c0a [2020-10-28 05:15:47,413 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 05:15:47,413 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-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-28 05:15:47,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cb2a96cc/6691cb35376349bb824d8308c084a4f3/FLAGf7c570c0a [2020-10-28 05:15:47,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cb2a96cc/6691cb35376349bb824d8308c084a4f3 [2020-10-28 05:15:47,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 05:15:47,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 05:15:47,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 05:15:47,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 05:15:47,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 05:15:47,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:15:47" (1/1) ... [2020-10-28 05:15:47,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722cdd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:47, skipping insertion in model container [2020-10-28 05:15:47,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:15:47" (1/1) ... [2020-10-28 05:15:47,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 05:15:47,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 05:15:48,070 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2020-10-28 05:15:48,071 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2020-10-28 05:15:48,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 05:15:48,461 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 05:15:48,522 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2020-10-28 05:15:48,522 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2020-10-28 05:15:48,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 05:15:48,739 INFO L208 MainTranslator]: Completed translation [2020-10-28 05:15:48,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48 WrapperNode [2020-10-28 05:15:48,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 05:15:48,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 05:15:48,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 05:15:48,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 05:15:48,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... [2020-10-28 05:15:48,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 05:15:48,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 05:15:48,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 05:15:48,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 05:15:48,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 05:15:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 05:15:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 05:15:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-28 05:15:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 05:15:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-28 05:15:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 05:15:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-28 05:15:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2020-10-28 05:15:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2020-10-28 05:15:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 05:15:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 05:15:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-28 05:15:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-28 05:15:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-28 05:15:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 05:15:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 05:15:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2020-10-28 05:15:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2020-10-28 05:15:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2020-10-28 05:15:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2020-10-28 05:15:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2020-10-28 05:15:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2020-10-28 05:15:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2020-10-28 05:15:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2020-10-28 05:15:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2020-10-28 05:15:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 05:15:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 05:15:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 05:15:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 05:15:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 05:15:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 05:15:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-28 05:15:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 05:15:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-28 05:15:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-28 05:15:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-28 05:15:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-28 05:15:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2020-10-28 05:15:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-28 05:15:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-10-28 05:15:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 05:15:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 05:15:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-28 05:15:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-28 05:15:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-28 05:15:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-28 05:15:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-10-28 05:15:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-28 05:15:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-28 05:15:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 05:15:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-28 05:15:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2020-10-28 05:15:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2020-10-28 05:15:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2020-10-28 05:15:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 05:15:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 05:15:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 05:15:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 05:15:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 05:15:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 05:15:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 05:15:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 05:15:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-28 05:15:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-28 05:15:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 05:15:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-28 05:15:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 05:15:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2020-10-28 05:15:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2020-10-28 05:15:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2020-10-28 05:15:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 05:15:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 05:15:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 05:15:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 05:15:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 05:15:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 05:15:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-28 05:15:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 05:15:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 05:15:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 05:15:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-28 05:15:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-28 05:15:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 05:15:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 05:15:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-28 05:15:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 05:15:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 05:15:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 05:15:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 05:15:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 05:15:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 05:15:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 05:15:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 05:15:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 05:15:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 05:15:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 05:15:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 05:15:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 05:15:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-28 05:15:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2020-10-28 05:15:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2020-10-28 05:15:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2020-10-28 05:15:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2020-10-28 05:15:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2020-10-28 05:15:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2020-10-28 05:15:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2020-10-28 05:15:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2020-10-28 05:15:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2020-10-28 05:15:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2020-10-28 05:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2020-10-28 05:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2020-10-28 05:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2020-10-28 05:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2020-10-28 05:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2020-10-28 05:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 05:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2020-10-28 05:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2020-10-28 05:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2020-10-28 05:15:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-10-28 05:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-28 05:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 05:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 05:15:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 05:15:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 05:15:49,632 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 05:16:00,769 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 05:16:00,770 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 05:16:00,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:16:00 BoogieIcfgContainer [2020-10-28 05:16:00,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 05:16:00,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 05:16:00,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 05:16:00,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 05:16:00,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:15:47" (1/3) ... [2020-10-28 05:16:00,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20978312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:16:00, skipping insertion in model container [2020-10-28 05:16:00,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:48" (2/3) ... [2020-10-28 05:16:00,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20978312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:16:00, skipping insertion in model container [2020-10-28 05:16:00,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:16:00" (3/3) ... [2020-10-28 05:16:00,781 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-28 05:16:00,793 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 05:16:00,799 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 05:16:00,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 05:16:00,843 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 05:16:00,843 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 05:16:00,843 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 05:16:00,843 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 05:16:00,843 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 05:16:00,843 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 05:16:00,844 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 05:16:00,844 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 05:16:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states. [2020-10-28 05:16:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 05:16:00,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:16:00,890 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:16:00,890 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:16:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:16:00,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1028992447, now seen corresponding path program 1 times [2020-10-28 05:16:00,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:16:00,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587854891] [2020-10-28 05:16:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:16:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:01,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:01,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 05:16:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:16:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2970 [2020-10-28 05:16:04,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 05:16:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 05:16:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 05:16:05,696 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:16:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:16:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:05,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 05:16:05,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:16:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:05,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:16:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:05,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:05,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:16:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:05,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:16:05,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:05,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:16:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:16:05,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:05,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 05:16:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:05,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:05,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:05,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:05,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:05,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:16:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:06,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 05:16:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:06,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:16:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:16:06,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587854891] [2020-10-28 05:16:06,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:16:06,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 05:16:06,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034435744] [2020-10-28 05:16:06,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 05:16:06,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:16:06,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 05:16:06,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 05:16:06,074 INFO L87 Difference]: Start difference. First operand 583 states. Second operand 5 states. [2020-10-28 05:16:07,385 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-28 05:16:09,191 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-28 05:16:10,468 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-28 05:16:33,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:16:33,276 INFO L93 Difference]: Finished difference Result 1455 states and 1970 transitions. [2020-10-28 05:16:33,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 05:16:33,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-28 05:16:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:16:33,309 INFO L225 Difference]: With dead ends: 1455 [2020-10-28 05:16:33,309 INFO L226 Difference]: Without dead ends: 855 [2020-10-28 05:16:33,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:16:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-28 05:16:33,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 700. [2020-10-28 05:16:33,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-28 05:16:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 897 transitions. [2020-10-28 05:16:33,632 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 897 transitions. Word has length 58 [2020-10-28 05:16:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:16:33,633 INFO L481 AbstractCegarLoop]: Abstraction has 700 states and 897 transitions. [2020-10-28 05:16:33,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 05:16:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 897 transitions. [2020-10-28 05:16:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 05:16:33,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:16:33,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:16:33,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 05:16:33,641 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:16:33,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:16:33,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1178599082, now seen corresponding path program 1 times [2020-10-28 05:16:33,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:16:33,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326536580] [2020-10-28 05:16:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:16:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:33,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:33,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:34,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:35,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:35,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 05:16:35,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 05:16:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2246 [2020-10-28 05:16:35,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 05:16:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 05:16:35,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,264 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:16:37,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:16:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:37,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 05:16:37,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:16:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:37,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:16:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:16:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:16:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:16:37,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:16:37,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 05:16:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:37,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:37,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 05:16:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:37,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:37,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:37,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:37,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:37,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:16:37,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:16:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:37,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:16:37,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326536580] [2020-10-28 05:16:37,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:16:37,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 05:16:37,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022821389] [2020-10-28 05:16:37,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 05:16:37,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:16:37,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 05:16:37,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 05:16:37,545 INFO L87 Difference]: Start difference. First operand 700 states and 897 transitions. Second operand 5 states. [2020-10-28 05:16:38,634 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-28 05:16:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:16:55,139 INFO L93 Difference]: Finished difference Result 1579 states and 2111 transitions. [2020-10-28 05:16:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 05:16:55,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-10-28 05:16:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:16:55,163 INFO L225 Difference]: With dead ends: 1579 [2020-10-28 05:16:55,163 INFO L226 Difference]: Without dead ends: 906 [2020-10-28 05:16:55,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 05:16:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-10-28 05:16:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 705. [2020-10-28 05:16:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-10-28 05:16:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 903 transitions. [2020-10-28 05:16:55,412 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 903 transitions. Word has length 62 [2020-10-28 05:16:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:16:55,413 INFO L481 AbstractCegarLoop]: Abstraction has 705 states and 903 transitions. [2020-10-28 05:16:55,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 05:16:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 903 transitions. [2020-10-28 05:16:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 05:16:55,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:16:55,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:16:55,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 05:16:55,418 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:16:55,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:16:55,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1216536521, now seen corresponding path program 1 times [2020-10-28 05:16:55,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:16:55,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585090818] [2020-10-28 05:16:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:16:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:55,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:56,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:57,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:57,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 05:16:57,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:16:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2043 [2020-10-28 05:16:57,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:16:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 05:16:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:58,771 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:16:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:16:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-28 05:16:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 05:16:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:16:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:59,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 05:16:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:16:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:16:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:59,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:16:59,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:16:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:16:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:16:59,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:16:59,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:16:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:16:59,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:16:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 05:16:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 05:16:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:16:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:16:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:16:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 05:16:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:16:59,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:16:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:16:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:16:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:16:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:16:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:16:59,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585090818] [2020-10-28 05:16:59,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:16:59,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 05:16:59,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528848372] [2020-10-28 05:16:59,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 05:16:59,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:16:59,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 05:16:59,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 05:16:59,191 INFO L87 Difference]: Start difference. First operand 705 states and 903 transitions. Second operand 5 states. [2020-10-28 05:17:00,329 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-28 05:17:02,108 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 416 [2020-10-28 05:17:03,399 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 413 [2020-10-28 05:17:20,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:17:20,554 INFO L93 Difference]: Finished difference Result 1547 states and 2051 transitions. [2020-10-28 05:17:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 05:17:20,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-28 05:17:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:17:20,561 INFO L225 Difference]: With dead ends: 1547 [2020-10-28 05:17:20,561 INFO L226 Difference]: Without dead ends: 869 [2020-10-28 05:17:20,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:17:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-28 05:17:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 714. [2020-10-28 05:17:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-10-28 05:17:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 911 transitions. [2020-10-28 05:17:20,807 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 911 transitions. Word has length 64 [2020-10-28 05:17:20,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:17:20,808 INFO L481 AbstractCegarLoop]: Abstraction has 714 states and 911 transitions. [2020-10-28 05:17:20,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 05:17:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 911 transitions. [2020-10-28 05:17:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 05:17:20,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:17:20,812 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:17:20,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 05:17:20,812 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:17:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:17:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash 782086428, now seen corresponding path program 1 times [2020-10-28 05:17:20,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:17:20,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495088718] [2020-10-28 05:17:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:17:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:22,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:25,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:17:25,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 05:17:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,094 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:17:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:17:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:17:27,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-28 05:17:27,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 05:17:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:17:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:17:27,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:17:27,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:17:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:17:27,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:17:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:17:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:17:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:17:27,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:17:27,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 05:17:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:17:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:17:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:17:27,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:17:27,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 05:17:27,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 05:17:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:17:27,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:17:27,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:17:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 05:17:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:17:27,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:17:27,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:17:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:17:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 05:17:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:27,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:27,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:27,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:17:27,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:17:27,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:17:27,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:17:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:17:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:17:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:17:27,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495088718] [2020-10-28 05:17:27,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:17:27,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 05:17:27,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129164101] [2020-10-28 05:17:27,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 05:17:27,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:17:27,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 05:17:27,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 05:17:27,521 INFO L87 Difference]: Start difference. First operand 714 states and 911 transitions. Second operand 5 states. [2020-10-28 05:17:28,628 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-28 05:17:30,177 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-28 05:17:31,447 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-28 05:17:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:17:54,061 INFO L93 Difference]: Finished difference Result 1598 states and 2201 transitions. [2020-10-28 05:17:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 05:17:54,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-10-28 05:17:54,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:17:54,077 INFO L225 Difference]: With dead ends: 1598 [2020-10-28 05:17:54,077 INFO L226 Difference]: Without dead ends: 1563 [2020-10-28 05:17:54,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:17:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-10-28 05:17:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1247. [2020-10-28 05:17:54,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2020-10-28 05:17:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1637 transitions. [2020-10-28 05:17:54,376 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1637 transitions. Word has length 75 [2020-10-28 05:17:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:17:54,377 INFO L481 AbstractCegarLoop]: Abstraction has 1247 states and 1637 transitions. [2020-10-28 05:17:54,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 05:17:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1637 transitions. [2020-10-28 05:17:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 05:17:54,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:17:54,382 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-28 05:17:54,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 05:17:54,382 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:17:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:17:54,383 INFO L82 PathProgramCache]: Analyzing trace with hash -991932954, now seen corresponding path program 1 times [2020-10-28 05:17:54,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:17:54,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348331833] [2020-10-28 05:17:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:17:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:17:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:55,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:17:59,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:17:59,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 05:17:59,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5093 [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 05:17:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:00,709 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:18:00,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:18:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:00,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:00,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 05:18:00,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:00,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:18:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:18:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:00,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:18:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:00,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:18:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:00,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:00,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:00,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:00,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:18:00,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:18:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:18:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:00,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:00,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:00,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:00,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 05:18:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:00,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:01,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 05:18:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:01,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:18:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:01,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:01,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:01,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:01,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:01,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:01,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 05:18:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:01,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:01,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:18:01,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:01,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:01,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 05:18:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:18:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 05:18:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:01,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:01,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:01,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:01,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:18:01,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:18:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:01,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:18:01,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348331833] [2020-10-28 05:18:01,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:18:01,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 05:18:01,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651110074] [2020-10-28 05:18:01,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 05:18:01,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:18:01,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 05:18:01,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 05:18:01,083 INFO L87 Difference]: Start difference. First operand 1247 states and 1637 transitions. Second operand 7 states. [2020-10-28 05:18:02,275 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-28 05:18:04,175 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 420 [2020-10-28 05:18:05,502 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-28 05:18:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:18:27,016 INFO L93 Difference]: Finished difference Result 4252 states and 5907 transitions. [2020-10-28 05:18:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 05:18:27,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-28 05:18:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:18:27,035 INFO L225 Difference]: With dead ends: 4252 [2020-10-28 05:18:27,036 INFO L226 Difference]: Without dead ends: 3032 [2020-10-28 05:18:27,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-28 05:18:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2020-10-28 05:18:27,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2258. [2020-10-28 05:18:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2258 states. [2020-10-28 05:18:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3003 transitions. [2020-10-28 05:18:27,645 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3003 transitions. Word has length 90 [2020-10-28 05:18:27,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:18:27,645 INFO L481 AbstractCegarLoop]: Abstraction has 2258 states and 3003 transitions. [2020-10-28 05:18:27,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 05:18:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3003 transitions. [2020-10-28 05:18:27,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 05:18:27,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:18:27,653 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:18:27,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 05:18:27,654 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:18:27,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:18:27,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1372436140, now seen corresponding path program 1 times [2020-10-28 05:18:27,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:18:27,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580081038] [2020-10-28 05:18:27,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:18:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:27,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:27,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:31,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:31,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 05:18:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 05:18:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3636 [2020-10-28 05:18:31,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:18:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-28 05:18:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 05:18:31,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,655 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:18:32,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:18:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:32,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:18:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:32,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:18:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:18:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:18:32,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:18:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:18:32,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 05:18:32,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 05:18:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:18:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 05:18:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 05:18:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:18:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:18:32,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 05:18:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 05:18:32,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:18:32,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 05:18:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:18:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:18:32,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 05:18:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:32,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:18:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 05:18:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:18:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:18:32,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:18:32,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:18:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:18:33,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580081038] [2020-10-28 05:18:33,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:18:33,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 05:18:33,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459375449] [2020-10-28 05:18:33,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 05:18:33,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:18:33,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 05:18:33,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:18:33,013 INFO L87 Difference]: Start difference. First operand 2258 states and 3003 transitions. Second operand 9 states. [2020-10-28 05:18:34,198 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-28 05:18:36,175 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 420 [2020-10-28 05:18:37,533 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-28 05:19:02,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:19:02,938 INFO L93 Difference]: Finished difference Result 6554 states and 9122 transitions. [2020-10-28 05:19:02,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 05:19:02,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-28 05:19:02,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:19:02,969 INFO L225 Difference]: With dead ends: 6554 [2020-10-28 05:19:02,969 INFO L226 Difference]: Without dead ends: 4323 [2020-10-28 05:19:02,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-28 05:19:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2020-10-28 05:19:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 3321. [2020-10-28 05:19:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3321 states. [2020-10-28 05:19:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 4432 transitions. [2020-10-28 05:19:03,966 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 4432 transitions. Word has length 94 [2020-10-28 05:19:03,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:19:03,966 INFO L481 AbstractCegarLoop]: Abstraction has 3321 states and 4432 transitions. [2020-10-28 05:19:03,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 05:19:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 4432 transitions. [2020-10-28 05:19:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 05:19:03,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:19:03,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-28 05:19:03,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 05:19:03,979 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:19:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:19:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1318187326, now seen corresponding path program 1 times [2020-10-28 05:19:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:19:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95738201] [2020-10-28 05:19:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:19:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:04,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:08,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 05:19:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,329 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-28 05:19:10,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:19:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:19:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:19:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 05:19:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 05:19:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:19:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 05:19:10,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 05:19:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 05:19:10,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:19:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:19:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 05:19:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 05:19:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:19:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:19:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 05:19:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:19:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 05:19:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 05:19:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:19:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:19:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:19:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:19:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:19:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:19:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 05:19:10,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95738201] [2020-10-28 05:19:10,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:19:10,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 05:19:10,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385296681] [2020-10-28 05:19:10,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 05:19:10,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:19:10,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 05:19:10,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 05:19:10,557 INFO L87 Difference]: Start difference. First operand 3321 states and 4432 transitions. Second operand 6 states. [2020-10-28 05:19:11,764 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-28 05:19:13,474 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-28 05:19:14,755 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 411