/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=SHALLOWEST --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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 08:10:45,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 08:10:45,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 08:10:45,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 08:10:45,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 08:10:45,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 08:10:45,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 08:10:45,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 08:10:45,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 08:10:45,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 08:10:45,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 08:10:45,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 08:10:45,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 08:10:45,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 08:10:45,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 08:10:45,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 08:10:45,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 08:10:45,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 08:10:45,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 08:10:45,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 08:10:45,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 08:10:45,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 08:10:45,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 08:10:45,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 08:10:45,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 08:10:45,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 08:10:45,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 08:10:45,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 08:10:45,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 08:10:45,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 08:10:45,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 08:10:45,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 08:10:45,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 08:10:45,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 08:10:45,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 08:10:45,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 08:10:45,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 08:10:45,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 08:10:45,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 08:10:45,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 08:10:45,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 08:10:45,355 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 [2020-10-27 08:10:45,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 08:10:45,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 08:10:45,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 08:10:45,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 08:10:45,435 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 08:10:45,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 08:10:45,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 08:10:45,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 08:10:45,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 08:10:45,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 08:10:45,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 08:10:45,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 08:10:45,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 08:10:45,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 08:10:45,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 08:10:45,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 08:10:45,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 08:10:45,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 08:10:45,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 08:10:45,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 08:10:45,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 08:10:45,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 08:10:45,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 08:10:45,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 08:10:45,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 08:10:45,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 08:10:45,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 08:10:45,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 08:10:45,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 08:10:45,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 08:10:45,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 08:10:45,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 08:10:45,875 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 08:10:45,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-27 08:10:45,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd224b3c5/32fcdd1a91e3409a9aa02bf106b10320/FLAG7c3e49228 [2020-10-27 08:10:47,001 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 08:10:47,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-27 08:10:47,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd224b3c5/32fcdd1a91e3409a9aa02bf106b10320/FLAG7c3e49228 [2020-10-27 08:10:47,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd224b3c5/32fcdd1a91e3409a9aa02bf106b10320 [2020-10-27 08:10:47,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 08:10:47,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 08:10:47,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:47,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 08:10:47,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 08:10:47,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:47" (1/1) ... [2020-10-27 08:10:47,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70851218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:47, skipping insertion in model container [2020-10-27 08:10:47,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:47" (1/1) ... [2020-10-27 08:10:47,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 08:10:47,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 08:10:48,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:48,641 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 08:10:48,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:49,277 INFO L208 MainTranslator]: Completed translation [2020-10-27 08:10:49,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49 WrapperNode [2020-10-27 08:10:49,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:49,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 08:10:49,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 08:10:49,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 08:10:49,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... [2020-10-27 08:10:49,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 08:10:49,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 08:10:49,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 08:10:49,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 08:10:49,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 08:10:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 08:10:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 08:10:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 08:10:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-27 08:10:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-27 08:10:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-27 08:10:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-27 08:10:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-27 08:10:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-27 08:10:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-27 08:10:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 08:10:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 08:10:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 08:10:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 08:10:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 08:10:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-27 08:10:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-27 08:10:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_units [2020-10-27 08:10:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-27 08:10:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2020-10-27 08:10:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_detect [2020-10-27 08:10:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_open [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_release [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_read [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_exit [2020-10-27 08:10:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-27 08:10:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-27 08:10:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-27 08:10:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_10 [2020-10-27 08:10:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:49,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:49,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-27 08:10:49,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:49,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:49,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-27 08:10:49,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-27 08:10:49,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pg_mutex [2020-10-27 08:10:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pg_mutex [2020-10-27 08:10:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-27 08:10:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pg_mutex [2020-10-27 08:10:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pg_mutex [2020-10-27 08:10:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 08:10:49,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 08:10:49,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-27 08:10:49,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-27 08:10:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2020-10-27 08:10:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-27 08:10:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-27 08:10:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-27 08:10:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 08:10:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-27 08:10:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-27 08:10:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 08:10:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 08:10:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 08:10:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 08:10:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 08:10:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 08:10:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 08:10:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 08:10:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 08:10:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-27 08:10:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-27 08:10:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 08:10:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-27 08:10:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-27 08:10:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 08:10:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-27 08:10:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-27 08:10:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-27 08:10:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-27 08:10:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-27 08:10:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-27 08:10:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 08:10:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-27 08:10:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 08:10:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-27 08:10:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-27 08:10:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-27 08:10:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-27 08:10:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-27 08:10:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:49,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pg_mutex [2020-10-27 08:10:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pg_mutex [2020-10-27 08:10:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 08:10:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-27 08:10:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 08:10:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_10 [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-27 08:10:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 08:10:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-27 08:10:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-27 08:10:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_open [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_release [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_read [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_detect [2020-10-27 08:10:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_units [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-27 08:10:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 08:10:49,796 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure pg_exit [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 08:10:49,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pg_mutex [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pg_mutex [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 08:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 08:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 08:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 08:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 08:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 08:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 08:10:53,530 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 08:10:53,531 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 08:10:53,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:10:53 BoogieIcfgContainer [2020-10-27 08:10:53,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 08:10:53,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 08:10:53,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 08:10:53,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 08:10:53,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:10:47" (1/3) ... [2020-10-27 08:10:53,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d72ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:10:53, skipping insertion in model container [2020-10-27 08:10:53,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:49" (2/3) ... [2020-10-27 08:10:53,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d72ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:10:53, skipping insertion in model container [2020-10-27 08:10:53,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:10:53" (3/3) ... [2020-10-27 08:10:53,549 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-27 08:10:53,569 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 08:10:53,575 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 08:10:53,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 08:10:53,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 08:10:53,622 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 08:10:53,622 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 08:10:53,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 08:10:53,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 08:10:53,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 08:10:53,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 08:10:53,622 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 08:10:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states. [2020-10-27 08:10:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 08:10:53,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:10:53,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:10:53,678 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:10:53,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:10:53,689 INFO L82 PathProgramCache]: Analyzing trace with hash -68479308, now seen corresponding path program 1 times [2020-10-27 08:10:53,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:10:53,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565624391] [2020-10-27 08:10:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:10:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:10:54,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:55,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:57,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:10:57,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 08:10:57,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:10:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3421 [2020-10-27 08:10:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:10:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:10:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:10:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 08:10:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-27 08:10:59,128 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:10:59,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:10:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:10:59,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:59,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:10:59,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:10:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:10:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:10:59,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:10:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:10:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:10:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:10:59,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:10:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:10:59,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:10:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:10:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:10:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:10:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:10:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:10:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:10:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:10:59,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:10:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:10:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:10:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:10:59,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:10:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:10:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 08:10:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:10:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:10:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:10:59,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565624391] [2020-10-27 08:10:59,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:10:59,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 08:10:59,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872333317] [2020-10-27 08:10:59,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 08:10:59,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:10:59,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 08:10:59,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:10:59,665 INFO L87 Difference]: Start difference. First operand 707 states. Second operand 7 states. [2020-10-27 08:11:01,931 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:11:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:11:13,198 INFO L93 Difference]: Finished difference Result 1218 states and 1597 transitions. [2020-10-27 08:11:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:11:13,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-27 08:11:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:11:13,230 INFO L225 Difference]: With dead ends: 1218 [2020-10-27 08:11:13,230 INFO L226 Difference]: Without dead ends: 623 [2020-10-27 08:11:13,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:11:13,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-27 08:11:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 587. [2020-10-27 08:11:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-27 08:11:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 753 transitions. [2020-10-27 08:11:13,593 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 753 transitions. Word has length 33 [2020-10-27 08:11:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:11:13,594 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 753 transitions. [2020-10-27 08:11:13,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 08:11:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 753 transitions. [2020-10-27 08:11:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-27 08:11:13,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:11:13,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:11:13,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 08:11:13,610 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:11:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:11:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1361523391, now seen corresponding path program 1 times [2020-10-27 08:11:13,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:11:13,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640059209] [2020-10-27 08:11:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:11:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:14,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:17,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:17,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-27 08:11:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:11:17,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4223 [2020-10-27 08:11:17,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 08:11:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:11:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 08:11:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:19,195 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:11:19,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:11:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:19,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:19,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 08:11:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:11:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:11:19,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:11:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:19,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:19,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:19,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:19,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:11:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 08:11:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:19,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:19,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:19,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:19,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:11:19,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:11:19,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640059209] [2020-10-27 08:11:19,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:11:19,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:11:19,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049781708] [2020-10-27 08:11:19,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:11:19,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:11:19,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:11:19,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:11:19,475 INFO L87 Difference]: Start difference. First operand 587 states and 753 transitions. Second operand 5 states. [2020-10-27 08:11:22,663 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:11:34,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:11:34,147 INFO L93 Difference]: Finished difference Result 835 states and 1064 transitions. [2020-10-27 08:11:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:11:34,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-27 08:11:34,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:11:34,156 INFO L225 Difference]: With dead ends: 835 [2020-10-27 08:11:34,156 INFO L226 Difference]: Without dead ends: 828 [2020-10-27 08:11:34,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:11:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-27 08:11:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 785. [2020-10-27 08:11:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-27 08:11:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1001 transitions. [2020-10-27 08:11:34,346 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1001 transitions. Word has length 36 [2020-10-27 08:11:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:11:34,347 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1001 transitions. [2020-10-27 08:11:34,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:11:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1001 transitions. [2020-10-27 08:11:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 08:11:34,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:11:34,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:11:34,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 08:11:34,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:11:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:11:34,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1036424104, now seen corresponding path program 1 times [2020-10-27 08:11:34,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:11:34,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828236311] [2020-10-27 08:11:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:11:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:34,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:34,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:39,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:39,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 08:11:39,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 08:11:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:40,714 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:11:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:11:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:40,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:40,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:40,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:40,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-27 08:11:40,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:11:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:11:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:40,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:11:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:40,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:40,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:40,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:40,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:40,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:11:40,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:11:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:40,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:11:40,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:40,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:11:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:41,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:41,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 08:11:41,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:11:41,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-27 08:11:41,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 08:11:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 08:11:41,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:11:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:41,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:11:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:41,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:11:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:11:41,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:11:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 08:11:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:11:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 08:11:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:11:41,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828236311] [2020-10-27 08:11:41,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:11:41,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 08:11:41,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731616556] [2020-10-27 08:11:41,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 08:11:41,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:11:41,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 08:11:41,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 08:11:41,334 INFO L87 Difference]: Start difference. First operand 785 states and 1001 transitions. Second operand 9 states. [2020-10-27 08:11:45,789 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:11:48,174 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 407 [2020-10-27 08:11:54,450 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 08:12:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:04,291 INFO L93 Difference]: Finished difference Result 2484 states and 3246 transitions. [2020-10-27 08:12:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 08:12:04,296 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-10-27 08:12:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:04,313 INFO L225 Difference]: With dead ends: 2484 [2020-10-27 08:12:04,314 INFO L226 Difference]: Without dead ends: 1710 [2020-10-27 08:12:04,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2020-10-27 08:12:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2020-10-27 08:12:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1491. [2020-10-27 08:12:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-27 08:12:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1902 transitions. [2020-10-27 08:12:04,715 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1902 transitions. Word has length 46 [2020-10-27 08:12:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:04,716 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 1902 transitions. [2020-10-27 08:12:04,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 08:12:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1902 transitions. [2020-10-27 08:12:04,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 08:12:04,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:04,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:12:04,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 08:12:04,719 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:04,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:04,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1589111900, now seen corresponding path program 1 times [2020-10-27 08:12:04,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:04,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450247449] [2020-10-27 08:12:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:04,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:04,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:05,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:08,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:08,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 08:12:08,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:12:08,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3553 [2020-10-27 08:12:08,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:12:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 08:12:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,558 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:12:09,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:09,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:09,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 08:12:09,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 08:12:09,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 08:12:09,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:12:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:09,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 08:12:09,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 08:12:09,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 08:12:09,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:09,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:09,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:09,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:09,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:09,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:09,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 08:12:09,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:09,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450247449] [2020-10-27 08:12:09,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:09,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 08:12:09,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459356907] [2020-10-27 08:12:09,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 08:12:09,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:09,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 08:12:09,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 08:12:09,866 INFO L87 Difference]: Start difference. First operand 1491 states and 1902 transitions. Second operand 6 states. [2020-10-27 08:12:11,892 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:12:19,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:19,387 INFO L93 Difference]: Finished difference Result 1562 states and 1989 transitions. [2020-10-27 08:12:19,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 08:12:19,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-27 08:12:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:19,398 INFO L225 Difference]: With dead ends: 1562 [2020-10-27 08:12:19,398 INFO L226 Difference]: Without dead ends: 1557 [2020-10-27 08:12:19,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:12:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-10-27 08:12:19,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1490. [2020-10-27 08:12:19,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-10-27 08:12:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1900 transitions. [2020-10-27 08:12:19,751 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1900 transitions. Word has length 48 [2020-10-27 08:12:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:19,751 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 1900 transitions. [2020-10-27 08:12:19,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 08:12:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1900 transitions. [2020-10-27 08:12:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-27 08:12:19,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:19,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:12:19,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 08:12:19,754 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:19,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:19,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1860698886, now seen corresponding path program 1 times [2020-10-27 08:12:19,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:19,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774520218] [2020-10-27 08:12:19,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:19,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:19,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:22,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 08:12:22,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:12:22,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3160 [2020-10-27 08:12:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:12:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 08:12:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:24,177 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:12:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:24,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 08:12:24,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:24,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:24,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:24,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 08:12:24,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:12:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 08:12:24,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:24,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 08:12:24,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:12:24,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:24,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:24,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:24,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774520218] [2020-10-27 08:12:24,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:24,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 08:12:24,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170462282] [2020-10-27 08:12:24,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 08:12:24,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:24,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 08:12:24,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 08:12:24,437 INFO L87 Difference]: Start difference. First operand 1490 states and 1900 transitions. Second operand 6 states. [2020-10-27 08:12:26,865 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:12:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:34,724 INFO L93 Difference]: Finished difference Result 1561 states and 1987 transitions. [2020-10-27 08:12:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 08:12:34,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-27 08:12:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:34,735 INFO L225 Difference]: With dead ends: 1561 [2020-10-27 08:12:34,736 INFO L226 Difference]: Without dead ends: 1556 [2020-10-27 08:12:34,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:12:34,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2020-10-27 08:12:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1489. [2020-10-27 08:12:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-10-27 08:12:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1898 transitions. [2020-10-27 08:12:35,081 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1898 transitions. Word has length 49 [2020-10-27 08:12:35,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:35,081 INFO L481 AbstractCegarLoop]: Abstraction has 1489 states and 1898 transitions. [2020-10-27 08:12:35,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 08:12:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1898 transitions. [2020-10-27 08:12:35,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 08:12:35,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:35,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:12:35,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 08:12:35,086 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:35,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1435328039, now seen corresponding path program 1 times [2020-10-27 08:12:35,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:35,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898574455] [2020-10-27 08:12:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:35,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:38,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:38,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 08:12:38,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:12:38,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3204 [2020-10-27 08:12:38,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:12:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 08:12:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:39,625 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:12:39,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:39,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:39,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:12:39,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 08:12:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 08:12:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:39,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:12:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:39,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:39,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:39,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 08:12:39,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:12:39,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:39,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:39,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 08:12:39,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:12:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:39,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:39,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:39,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898574455] [2020-10-27 08:12:39,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:39,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 08:12:39,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889359300] [2020-10-27 08:12:39,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 08:12:39,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:39,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 08:12:39,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 08:12:39,976 INFO L87 Difference]: Start difference. First operand 1489 states and 1898 transitions. Second operand 6 states. [2020-10-27 08:12:42,982 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:12:51,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:51,493 INFO L93 Difference]: Finished difference Result 1560 states and 1985 transitions. [2020-10-27 08:12:51,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 08:12:51,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-10-27 08:12:51,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:51,503 INFO L225 Difference]: With dead ends: 1560 [2020-10-27 08:12:51,503 INFO L226 Difference]: Without dead ends: 1502 [2020-10-27 08:12:51,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:12:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2020-10-27 08:12:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1435. [2020-10-27 08:12:51,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2020-10-27 08:12:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1828 transitions. [2020-10-27 08:12:51,898 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1828 transitions. Word has length 50 [2020-10-27 08:12:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:51,898 INFO L481 AbstractCegarLoop]: Abstraction has 1435 states and 1828 transitions. [2020-10-27 08:12:51,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 08:12:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1828 transitions. [2020-10-27 08:12:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 08:12:51,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:51,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:12:51,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 08:12:51,903 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash 112643743, now seen corresponding path program 1 times [2020-10-27 08:12:51,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:51,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349149607] [2020-10-27 08:12:51,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:52,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:55,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3579 [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 08:12:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:12:55,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,724 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:12:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:56,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 08:12:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:56,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:56,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:12:56,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 08:12:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:12:56,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:12:56,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:12:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:12:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:12:56,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:56,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:12:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:56,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:56,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:56,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:12:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:12:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:12:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:56,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349149607] [2020-10-27 08:12:56,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:56,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 08:12:56,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043354187] [2020-10-27 08:12:56,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 08:12:56,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:56,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 08:12:56,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 08:12:56,951 INFO L87 Difference]: Start difference. First operand 1435 states and 1828 transitions. Second operand 6 states. [2020-10-27 08:12:59,363 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 08:13:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:13:14,684 INFO L93 Difference]: Finished difference Result 3281 states and 4205 transitions. [2020-10-27 08:13:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:13:14,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-10-27 08:13:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:13:14,697 INFO L225 Difference]: With dead ends: 3281 [2020-10-27 08:13:14,697 INFO L226 Difference]: Without dead ends: 1857 [2020-10-27 08:13:14,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:13:14,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-10-27 08:13:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1718. [2020-10-27 08:13:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2020-10-27 08:13:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2209 transitions. [2020-10-27 08:13:15,140 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2209 transitions. Word has length 53 [2020-10-27 08:13:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:13:15,140 INFO L481 AbstractCegarLoop]: Abstraction has 1718 states and 2209 transitions. [2020-10-27 08:13:15,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 08:13:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2209 transitions. [2020-10-27 08:13:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 08:13:15,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:13:15,145 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:13:15,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 08:13:15,145 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:13:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:13:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash 404053744, now seen corresponding path program 1 times [2020-10-27 08:13:15,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:13:15,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613253533] [2020-10-27 08:13:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:13:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:15,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:15,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:15,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:15,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:15,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 08:13:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:21,675 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:13:21,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:13:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:21,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:21,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:21,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:21,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 08:13:21,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:21,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:13:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:21,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:21,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:21,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:21,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:21,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:21,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:13:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:21,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:21,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 08:13:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:22,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:13:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:13:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:13:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:22,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 08:13:22,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:13:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 08:13:22,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 08:13:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:22,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:13:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:13:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 08:13:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:22,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 08:13:22,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:13:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 08:13:22,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:13:22,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:22,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:22,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:22,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:22,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 08:13:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:22,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:22,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:13:22,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:22,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 08:13:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:22,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:13:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:22,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:13:22,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:22,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:22,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:22,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:22,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:22,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:22,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:22,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:22,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:22,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:22,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:13:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:13:22,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613253533] [2020-10-27 08:13:22,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:13:22,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 08:13:22,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000600223] [2020-10-27 08:13:22,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 08:13:22,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:13:22,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 08:13:22,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 08:13:22,871 INFO L87 Difference]: Start difference. First operand 1718 states and 2209 transitions. Second operand 11 states. [2020-10-27 08:13:29,909 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 08:13:42,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:13:42,411 INFO L93 Difference]: Finished difference Result 3586 states and 4644 transitions. [2020-10-27 08:13:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 08:13:42,412 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 106 [2020-10-27 08:13:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:13:42,422 INFO L225 Difference]: With dead ends: 3586 [2020-10-27 08:13:42,422 INFO L226 Difference]: Without dead ends: 1879 [2020-10-27 08:13:42,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-27 08:13:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2020-10-27 08:13:42,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1731. [2020-10-27 08:13:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2020-10-27 08:13:42,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2222 transitions. [2020-10-27 08:13:42,897 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2222 transitions. Word has length 106 [2020-10-27 08:13:42,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:13:42,898 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2222 transitions. [2020-10-27 08:13:42,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 08:13:42,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2222 transitions. [2020-10-27 08:13:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 08:13:42,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:13:42,902 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:13:42,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 08:13:42,902 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:13:42,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:13:42,903 INFO L82 PathProgramCache]: Analyzing trace with hash -547262161, now seen corresponding path program 1 times [2020-10-27 08:13:42,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:13:42,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741633886] [2020-10-27 08:13:42,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:13:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:43,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:43,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:47,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:47,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 08:13:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:13:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 08:13:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:49,486 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 08:13:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:13:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:49,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:49,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:49,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-27 08:13:49,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:49,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:13:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:49,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:49,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:13:49,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:13:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:49,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:13:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:49,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:49,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:49,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:50,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:51,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:51,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 08:13:51,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:13:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2049 [2020-10-27 08:13:51,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 08:13:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 08:13:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 08:13:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:13:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:52,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:52,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 08:13:52,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 08:13:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,186 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-27 08:13:53,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 08:13:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:53,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:13:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 08:13:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:13:53,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:13:53,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 08:13:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 08:13:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:53,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 08:13:53,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 08:13:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:53,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 08:13:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:53,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:53,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:13:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 08:13:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 08:13:53,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:13:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:13:53,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 08:13:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:53,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:53,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:53,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:53,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:13:53,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741633886] [2020-10-27 08:13:53,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 08:13:53,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 08:13:53,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90152273] [2020-10-27 08:13:53,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 08:13:53,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:13:53,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 08:13:53,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-10-27 08:13:53,783 INFO L87 Difference]: Start difference. First operand 1731 states and 2222 transitions. Second operand 16 states. [2020-10-27 08:14:01,230 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-27 08:14:02,163 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 77