/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:22:52,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:22:52,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:22:52,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:22:52,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:22:52,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:22:52,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:22:52,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:22:52,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:22:52,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:22:52,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:22:52,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:22:52,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:22:52,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:22:52,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:22:52,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:22:52,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:22:52,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:22:52,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:22:52,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:22:52,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:22:52,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:22:52,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:22:52,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:22:52,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:22:52,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:22:52,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:22:52,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:22:52,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:22:52,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:22:52,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:22:52,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:22:52,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:22:52,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:22:52,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:22:52,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:22:52,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:22:52,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:22:52,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:22:52,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:22:52,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:22:52,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:22:52,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:22:52,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:22:52,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:22:52,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:22:52,368 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:22:52,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:22:52,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:22:52,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:22:52,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:22:52,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:22:52,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:22:52,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:22:52,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:22:52,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:22:52,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:22:52,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:22:52,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:22:52,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:22:52,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:22:52,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:22:52,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:22:52,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:22:52,376 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:22:52,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:22:52,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:22:52,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:22:52,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:22:52,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:22:52,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-13 17:22:52,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07d7efc37/52bd8ac335f8485a942d643e5659e875/FLAGd0d8ef620 [2020-10-13 17:22:53,529 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:22:53,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-13 17:22:53,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07d7efc37/52bd8ac335f8485a942d643e5659e875/FLAGd0d8ef620 [2020-10-13 17:22:53,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07d7efc37/52bd8ac335f8485a942d643e5659e875 [2020-10-13 17:22:53,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:22:53,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:22:53,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:53,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:22:53,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:22:53,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:53" (1/1) ... [2020-10-13 17:22:53,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2584cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:53, skipping insertion in model container [2020-10-13 17:22:53,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:53" (1/1) ... [2020-10-13 17:22:53,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:22:53,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:22:55,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:55,200 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:22:55,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:22:55,605 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:22:55,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55 WrapperNode [2020-10-13 17:22:55,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:55,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:22:55,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:22:55,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:22:55,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... [2020-10-13 17:22:55,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:22:55,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:22:55,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:22:55,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:22:55,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:22:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:22:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:22:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-13 17:22:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 17:22:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 17:22:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 17:22:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-13 17:22:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-13 17:22:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-13 17:22:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:22:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 17:22:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:22:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:22:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:22:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 17:22:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 17:22:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init_units [2020-10-13 17:22:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-13 17:22:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-13 17:22:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 17:22:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-13 17:22:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2020-10-13 17:22:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2020-10-13 17:22:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2020-10-13 17:22:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2020-10-13 17:22:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2020-10-13 17:22:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-13 17:22:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2020-10-13 17:22:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2020-10-13 17:22:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_detect [2020-10-13 17:22:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_open [2020-10-13 17:22:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_release [2020-10-13 17:22:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2020-10-13 17:22:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_read [2020-10-13 17:22:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_init [2020-10-13 17:22:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_exit [2020-10-13 17:22:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:22:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:22:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:22:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-13 17:22:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-13 17:22:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-13 17:22:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-13 17:22:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_10 [2020-10-13 17:22:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2020-10-13 17:22:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:22:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:22:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:22:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:22:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:56,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-13 17:22:56,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pg_mutex [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pg_mutex [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pg_mutex [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pg_mutex [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:22:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-13 17:22:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-13 17:22:56,028 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-13 17:22:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-13 17:22:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-13 17:22:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-13 17:22:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-13 17:22:56,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-13 17:22:56,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-13 17:22:56,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:22:56,030 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 17:22:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-13 17:22:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:22:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 17:22:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:22:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:22:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-13 17:22:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-13 17:22:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:22:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:22:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:22:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:22:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:22:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pg_mutex [2020-10-13 17:22:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pg_mutex [2020-10-13 17:22:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:22:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:22:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-13 17:22:56,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:22:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_10 [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-13 17:22:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 17:22:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:22:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:22:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:22:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:22:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 17:22:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:22:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:22:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 17:22:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-13 17:22:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-13 17:22:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-13 17:22:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-13 17:22:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-13 17:22:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure pg_open [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_release [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_read [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_detect [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2020-10-13 17:22:56,052 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init_units [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 17:22:56,053 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-13 17:22:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure pg_init [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure pg_exit [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:22:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:22:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:22:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pg_mutex [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pg_mutex [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pg_mutex [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pg_mutex [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pg_mutex [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:22:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:22:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:22:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:22:58,538 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:22:58,539 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:22:58,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:58 BoogieIcfgContainer [2020-10-13 17:22:58,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:22:58,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:22:58,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:22:58,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:22:58,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:22:53" (1/3) ... [2020-10-13 17:22:58,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b88d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:58, skipping insertion in model container [2020-10-13 17:22:58,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:55" (2/3) ... [2020-10-13 17:22:58,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b88d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:22:58, skipping insertion in model container [2020-10-13 17:22:58,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:22:58" (3/3) ... [2020-10-13 17:22:58,557 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2020-10-13 17:22:58,569 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:22:58,579 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:22:58,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:22:58,626 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:22:58,626 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:22:58,626 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:22:58,627 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:22:58,627 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:22:58,627 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:22:58,627 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:22:58,627 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:22:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states. [2020-10-13 17:22:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:22:58,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:22:58,675 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] [2020-10-13 17:22:58,676 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:22:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:22:58,682 INFO L82 PathProgramCache]: Analyzing trace with hash 102616919, now seen corresponding path program 1 times [2020-10-13 17:22:58,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:22:58,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937723603] [2020-10-13 17:22:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:22:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:22:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:59,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:22:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:02,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:02,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:23:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2952 [2020-10-13 17:23:02,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 17:23:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 17:23:03,547 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:23:03,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:03,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:03,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:03,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:03,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:03,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 17:23:03,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:03,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:03,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:03,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:03,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:03,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:03,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:03,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:23:03,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:03,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:03,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:23:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:23:03,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:03,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937723603] [2020-10-13 17:23:03,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:03,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:03,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724486171] [2020-10-13 17:23:03,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:03,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:03,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:03,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:03,846 INFO L87 Difference]: Start difference. First operand 702 states. Second operand 6 states. [2020-10-13 17:23:05,473 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-13 17:23:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:10,314 INFO L93 Difference]: Finished difference Result 1230 states and 1615 transitions. [2020-10-13 17:23:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:10,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-13 17:23:10,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:10,352 INFO L225 Difference]: With dead ends: 1230 [2020-10-13 17:23:10,352 INFO L226 Difference]: Without dead ends: 633 [2020-10-13 17:23:10,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:23:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-13 17:23:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 586. [2020-10-13 17:23:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-10-13 17:23:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 753 transitions. [2020-10-13 17:23:10,625 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 753 transitions. Word has length 31 [2020-10-13 17:23:10,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:10,626 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 753 transitions. [2020-10-13 17:23:10,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:23:10,626 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 753 transitions. [2020-10-13 17:23:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:23:10,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:10,630 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] [2020-10-13 17:23:10,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:23:10,631 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:10,631 INFO L82 PathProgramCache]: Analyzing trace with hash 159875221, now seen corresponding path program 1 times [2020-10-13 17:23:10,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:10,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875900648] [2020-10-13 17:23:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:10,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:10,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:23:11,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:23:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-13 17:23:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:23:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 17:23:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:12,101 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:23:12,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:12,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:12,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:12,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:12,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 17:23:12,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:12,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:12,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:12,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:12,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:12,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:12,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:23:12,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:23:12,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:12,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:12,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:23:12,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:12,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 17:23:12,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:12,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:12,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:23:12,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:23:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:12,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875900648] [2020-10-13 17:23:12,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:12,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:23:12,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482436312] [2020-10-13 17:23:12,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:23:12,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:12,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:23:12,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:23:12,512 INFO L87 Difference]: Start difference. First operand 586 states and 753 transitions. Second operand 7 states. [2020-10-13 17:23:14,283 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-13 17:23:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:22,592 INFO L93 Difference]: Finished difference Result 1197 states and 1545 transitions. [2020-10-13 17:23:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:22,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 17:23:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:22,604 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 17:23:22,604 INFO L226 Difference]: Without dead ends: 622 [2020-10-13 17:23:22,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:23:22,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-10-13 17:23:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 586. [2020-10-13 17:23:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-10-13 17:23:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 752 transitions. [2020-10-13 17:23:22,745 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 752 transitions. Word has length 31 [2020-10-13 17:23:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:22,746 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 752 transitions. [2020-10-13 17:23:22,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:23:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 752 transitions. [2020-10-13 17:23:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 17:23:22,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:22,748 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] [2020-10-13 17:23:22,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:23:22,749 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash 706697067, now seen corresponding path program 1 times [2020-10-13 17:23:22,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:22,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996964985] [2020-10-13 17:23:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:22,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:22,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 17:23:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:23:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2856 [2020-10-13 17:23:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:23:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:23:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 17:23:26,705 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:23:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:26,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:26,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:26,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:26,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:26,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 17:23:26,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:26,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:26,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:26,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:26,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:26,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:23:26,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:26,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 17:23:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:26,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:26,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:26,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:23:26,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:23:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:26,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996964985] [2020-10-13 17:23:26,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:26,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:23:26,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090782104] [2020-10-13 17:23:26,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:23:26,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:26,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:23:26,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:23:26,902 INFO L87 Difference]: Start difference. First operand 586 states and 752 transitions. Second operand 5 states. [2020-10-13 17:23:29,467 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-13 17:23:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:40,202 INFO L93 Difference]: Finished difference Result 1538 states and 1987 transitions. [2020-10-13 17:23:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:40,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-13 17:23:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:40,211 INFO L225 Difference]: With dead ends: 1538 [2020-10-13 17:23:40,211 INFO L226 Difference]: Without dead ends: 963 [2020-10-13 17:23:40,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:23:40,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-10-13 17:23:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 892. [2020-10-13 17:23:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-10-13 17:23:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1151 transitions. [2020-10-13 17:23:40,412 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1151 transitions. Word has length 34 [2020-10-13 17:23:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:40,412 INFO L479 AbstractCegarLoop]: Abstraction has 892 states and 1151 transitions. [2020-10-13 17:23:40,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:23:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1151 transitions. [2020-10-13 17:23:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 17:23:40,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:40,414 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] [2020-10-13 17:23:40,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:23:40,415 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1152381466, now seen corresponding path program 1 times [2020-10-13 17:23:40,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:40,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457071628] [2020-10-13 17:23:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:40,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:40,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:45,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:45,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 17:23:45,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:23:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4842 [2020-10-13 17:23:45,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:23:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,072 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:23:46,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:46,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:46,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 17:23:46,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:46,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:46,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:46,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:23:46,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:46,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:46,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 17:23:46,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:46,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 17:23:46,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:23:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:46,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:23:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:46,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:23:46,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:23:46,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:23:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:23:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:46,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:23:46,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:23:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:23:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:23:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:46,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457071628] [2020-10-13 17:23:46,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:46,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:23:46,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386388054] [2020-10-13 17:23:46,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:23:46,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:46,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:23:46,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:23:46,465 INFO L87 Difference]: Start difference. First operand 892 states and 1151 transitions. Second operand 8 states. [2020-10-13 17:23:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:56,036 INFO L93 Difference]: Finished difference Result 1859 states and 2426 transitions. [2020-10-13 17:23:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:23:56,037 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-10-13 17:23:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:56,045 INFO L225 Difference]: With dead ends: 1859 [2020-10-13 17:23:56,045 INFO L226 Difference]: Without dead ends: 978 [2020-10-13 17:23:56,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:23:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-10-13 17:23:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 894. [2020-10-13 17:23:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-13 17:23:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1153 transitions. [2020-10-13 17:23:56,227 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1153 transitions. Word has length 44 [2020-10-13 17:23:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:56,228 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1153 transitions. [2020-10-13 17:23:56,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 17:23:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1153 transitions. [2020-10-13 17:23:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 17:23:56,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:56,229 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] [2020-10-13 17:23:56,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:23:56,230 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash -785985448, now seen corresponding path program 1 times [2020-10-13 17:23:56,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:56,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768103572] [2020-10-13 17:23:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:56,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:56,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:56,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:57,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:58,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:58,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 17:23:58,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2202 [2020-10-13 17:23:58,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:58,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:58,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 17:23:58,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,240 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:23:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:59,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 17:23:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:59,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:23:59,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:23:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 17:23:59,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:23:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 17:23:59,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:23:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:59,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:23:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:59,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:23:59,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:23:59,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:23:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:23:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:23:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:23:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:23:59,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:23:59,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:23:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:59,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:59,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:23:59,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:59,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768103572] [2020-10-13 17:23:59,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:59,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:59,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069172298] [2020-10-13 17:23:59,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:59,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:59,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:59,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:59,504 INFO L87 Difference]: Start difference. First operand 894 states and 1153 transitions. Second operand 6 states. [2020-10-13 17:24:01,573 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-13 17:24:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:09,423 INFO L93 Difference]: Finished difference Result 1037 states and 1335 transitions. [2020-10-13 17:24:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:24:09,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-13 17:24:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:09,433 INFO L225 Difference]: With dead ends: 1037 [2020-10-13 17:24:09,433 INFO L226 Difference]: Without dead ends: 970 [2020-10-13 17:24:09,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:24:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-13 17:24:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 904. [2020-10-13 17:24:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-10-13 17:24:09,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1163 transitions. [2020-10-13 17:24:09,591 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1163 transitions. Word has length 46 [2020-10-13 17:24:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:09,591 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1163 transitions. [2020-10-13 17:24:09,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:24:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1163 transitions. [2020-10-13 17:24:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 17:24:09,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:09,592 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] [2020-10-13 17:24:09,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:24:09,593 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:09,593 INFO L82 PathProgramCache]: Analyzing trace with hash -344519156, now seen corresponding path program 1 times [2020-10-13 17:24:09,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:09,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621671509] [2020-10-13 17:24:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:09,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:09,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:12,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 17:24:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:24:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-13 17:24:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 17:24:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 17:24:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:24:15,646 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:24:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:15,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:15,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:15,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:15,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:24:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:24:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:15,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:15,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:16,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:16,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 17:24:16,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:24:16,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-13 17:24:16,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:16,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:16,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 17:24:16,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 17:24:16,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:24:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:16,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:16,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 17:24:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:24:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 17:24:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:16,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:24:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:16,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:16,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:16,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:16,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:16,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:24:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 17:24:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:16,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:16,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:24:16,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:16,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:24:16,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:16,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:24:16,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 17:24:16,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 17:24:16,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621671509] [2020-10-13 17:24:16,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:24:16,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:24:16,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063417379] [2020-10-13 17:24:16,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:24:16,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:16,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:24:16,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:24:16,280 INFO L87 Difference]: Start difference. First operand 904 states and 1163 transitions. Second operand 8 states. [2020-10-13 17:24:19,290 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-13 17:24:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:26,598 INFO L93 Difference]: Finished difference Result 1903 states and 2484 transitions. [2020-10-13 17:24:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:24:26,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-13 17:24:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:26,605 INFO L225 Difference]: With dead ends: 1903 [2020-10-13 17:24:26,605 INFO L226 Difference]: Without dead ends: 1010 [2020-10-13 17:24:26,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-13 17:24:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-10-13 17:24:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 930. [2020-10-13 17:24:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 17:24:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1203 transitions. [2020-10-13 17:24:26,843 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1203 transitions. Word has length 53 [2020-10-13 17:24:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:26,844 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1203 transitions. [2020-10-13 17:24:26,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 17:24:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1203 transitions. [2020-10-13 17:24:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 17:24:26,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:26,846 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] [2020-10-13 17:24:26,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:24:26,846 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:26,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1163032653, now seen corresponding path program 1 times [2020-10-13 17:24:26,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:26,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022340326] [2020-10-13 17:24:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:26,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:27,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:32,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:32,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 17:24:32,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:24:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5924 [2020-10-13 17:24:32,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:24:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 17:24:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:33,607 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:24:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:33,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:33,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:33,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 17:24:33,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:33,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:33,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:33,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:33,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:33,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:24:33,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:33,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:33,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:24:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:33,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 17:24:33,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:33,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 17:24:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:24:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 17:24:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:24:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:33,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:33,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:33,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 17:24:33,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 17:24:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:33,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:24:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:33,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:33,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:33,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:24:33,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:24:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:34,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 17:24:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:34,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:24:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:24:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:24:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:24:34,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022340326] [2020-10-13 17:24:34,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:24:34,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 17:24:34,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999961046] [2020-10-13 17:24:34,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 17:24:34,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:34,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 17:24:34,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:24:34,039 INFO L87 Difference]: Start difference. First operand 930 states and 1203 transitions. Second operand 9 states. [2020-10-13 17:24:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:50,468 INFO L93 Difference]: Finished difference Result 1945 states and 2546 transitions. [2020-10-13 17:24:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:24:50,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2020-10-13 17:24:50,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:50,475 INFO L225 Difference]: With dead ends: 1945 [2020-10-13 17:24:50,475 INFO L226 Difference]: Without dead ends: 1026 [2020-10-13 17:24:50,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:24:50,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-13 17:24:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 942. [2020-10-13 17:24:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-13 17:24:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1219 transitions. [2020-10-13 17:24:50,769 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1219 transitions. Word has length 53 [2020-10-13 17:24:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:50,770 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1219 transitions. [2020-10-13 17:24:50,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 17:24:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1219 transitions. [2020-10-13 17:24:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-13 17:24:50,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:50,774 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, 1] [2020-10-13 17:24:50,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 17:24:50,775 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:50,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:50,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1943385449, now seen corresponding path program 1 times [2020-10-13 17:24:50,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:50,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865662067] [2020-10-13 17:24:50,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:50,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:50,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:51,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:54,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 17:24:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:24:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3447 [2020-10-13 17:24:54,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 17:24:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:24:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,357 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:24:55,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:55,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:55,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:24:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:24:55,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:24:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 17:24:55,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:24:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 17:24:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:24:55,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:24:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:24:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:24:55,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:24:55,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:24:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:24:55,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:24:55,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:24:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:55,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:55,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:55,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:55,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:55,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:24:55,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:24:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:24:55,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 17:24:55,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865662067] [2020-10-13 17:24:55,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:24:55,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 17:24:55,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129331433] [2020-10-13 17:24:55,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:24:55,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:24:55,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:24:55,712 INFO L87 Difference]: Start difference. First operand 942 states and 1219 transitions. Second operand 7 states. [2020-10-13 17:24:58,698 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-13 17:24:59,563 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-13 17:25:09,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:09,795 INFO L93 Difference]: Finished difference Result 1099 states and 1421 transitions. [2020-10-13 17:25:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:25:09,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2020-10-13 17:25:09,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:09,801 INFO L225 Difference]: With dead ends: 1099 [2020-10-13 17:25:09,802 INFO L226 Difference]: Without dead ends: 1030 [2020-10-13 17:25:09,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-13 17:25:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-10-13 17:25:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 964. [2020-10-13 17:25:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2020-10-13 17:25:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1249 transitions. [2020-10-13 17:25:10,032 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1249 transitions. Word has length 54 [2020-10-13 17:25:10,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:10,034 INFO L479 AbstractCegarLoop]: Abstraction has 964 states and 1249 transitions. [2020-10-13 17:25:10,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:25:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1249 transitions. [2020-10-13 17:25:10,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 17:25:10,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:10,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:10,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 17:25:10,039 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:10,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1812839705, now seen corresponding path program 2 times [2020-10-13 17:25:10,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:10,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625297962] [2020-10-13 17:25:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:10,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:12,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:15,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 17:25:15,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:15,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-13 17:25:15,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:25:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:25:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 17:25:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:16,157 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:25:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:16,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 17:25:16,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:16,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:25:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 17:25:16,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 17:25:16,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:25:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:25:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 17:25:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:25:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 17:25:16,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 17:25:16,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:25:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:25:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 17:25:16,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:25:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:25:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:25:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:25:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:25:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:16,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:16,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:25:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:25:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 17:25:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:16,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:16,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:25:16,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:16,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:25:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:25:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 17:25:16,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625297962] [2020-10-13 17:25:16,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:25:16,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 17:25:16,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596585985] [2020-10-13 17:25:16,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 17:25:16,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:16,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 17:25:16,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:25:16,688 INFO L87 Difference]: Start difference. First operand 964 states and 1249 transitions. Second operand 10 states. [2020-10-13 17:25:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:32,696 INFO L93 Difference]: Finished difference Result 2013 states and 2638 transitions. [2020-10-13 17:25:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 17:25:32,697 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-13 17:25:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:32,702 INFO L225 Difference]: With dead ends: 2013 [2020-10-13 17:25:32,702 INFO L226 Difference]: Without dead ends: 1060 [2020-10-13 17:25:32,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-13 17:25:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-13 17:25:32,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 976. [2020-10-13 17:25:32,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 976 states. [2020-10-13 17:25:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1265 transitions. [2020-10-13 17:25:32,981 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1265 transitions. Word has length 62 [2020-10-13 17:25:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:32,982 INFO L479 AbstractCegarLoop]: Abstraction has 976 states and 1265 transitions. [2020-10-13 17:25:32,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 17:25:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1265 transitions. [2020-10-13 17:25:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 17:25:32,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:32,983 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:32,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 17:25:32,983 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:32,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:32,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1385733290, now seen corresponding path program 2 times [2020-10-13 17:25:32,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:32,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763686863] [2020-10-13 17:25:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:33,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:33,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:33,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:35,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 17:25:38,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:25:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 17:25:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:25:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:25:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,900 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:25:38,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:38,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:38,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:38,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:25:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:39,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:39,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 17:25:39,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 17:25:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-13 17:25:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:39,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:25:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:39,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:39,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:39,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:25:39,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:39,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:39,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 17:25:39,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 17:25:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:39,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:39,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:25:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:39,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:25:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:39,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:39,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:25:39,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:25:39,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:39,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:25:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:39,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:39,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:39,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:25:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:25:39,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763686863] [2020-10-13 17:25:39,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:39,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:25:39,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967141320] [2020-10-13 17:25:39,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:25:39,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:39,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:25:39,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:25:39,241 INFO L87 Difference]: Start difference. First operand 976 states and 1265 transitions. Second operand 6 states. [2020-10-13 17:25:41,725 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-13 17:25:56,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:56,904 INFO L93 Difference]: Finished difference Result 1592 states and 2052 transitions. [2020-10-13 17:25:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:25:56,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-13 17:25:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:56,910 INFO L225 Difference]: With dead ends: 1592 [2020-10-13 17:25:56,911 INFO L226 Difference]: Without dead ends: 1479 [2020-10-13 17:25:56,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:25:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2020-10-13 17:25:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1361. [2020-10-13 17:25:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2020-10-13 17:25:57,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1770 transitions. [2020-10-13 17:25:57,202 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1770 transitions. Word has length 62 [2020-10-13 17:25:57,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:57,203 INFO L479 AbstractCegarLoop]: Abstraction has 1361 states and 1770 transitions. [2020-10-13 17:25:57,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:25:57,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1770 transitions. [2020-10-13 17:25:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 17:25:57,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:57,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:25:57,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 17:25:57,204 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:57,204 INFO L82 PathProgramCache]: Analyzing trace with hash 799262093, now seen corresponding path program 3 times [2020-10-13 17:25:57,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:57,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344784553] [2020-10-13 17:25:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:57,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:00,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:02,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:02,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 17:26:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:26:02,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5282 [2020-10-13 17:26:02,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:26:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:26:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:26:02,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:26:03,298 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:26:03,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:26:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:03,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:26:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:26:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 17:26:03,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 17:26:03,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:26:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:26:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:26:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:26:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 17:26:03,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:26:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:26:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:03,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:03,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:03,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:03,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:03,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:26:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:03,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:03,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:03,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 17:26:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:03,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:03,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:03,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:03,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 17:26:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:03,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:03,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:03,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:26:03,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:26:03,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:03,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:03,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:26:03,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:03,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 17:26:03,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344784553] [2020-10-13 17:26:03,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:26:03,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 17:26:03,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247800124] [2020-10-13 17:26:03,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:26:03,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:26:03,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:26:03,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:26:03,883 INFO L87 Difference]: Start difference. First operand 1361 states and 1770 transitions. Second operand 11 states. [2020-10-13 17:26:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:26:15,126 INFO L93 Difference]: Finished difference Result 2820 states and 3694 transitions. [2020-10-13 17:26:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:26:15,127 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 17:26:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:26:15,132 INFO L225 Difference]: With dead ends: 2820 [2020-10-13 17:26:15,132 INFO L226 Difference]: Without dead ends: 1470 [2020-10-13 17:26:15,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-10-13 17:26:15,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2020-10-13 17:26:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1373. [2020-10-13 17:26:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-13 17:26:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1786 transitions. [2020-10-13 17:26:15,354 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1786 transitions. Word has length 71 [2020-10-13 17:26:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:26:15,355 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1786 transitions. [2020-10-13 17:26:15,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 17:26:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1786 transitions. [2020-10-13 17:26:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 17:26:15,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:26:15,356 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:26:15,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 17:26:15,356 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:26:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:26:15,356 INFO L82 PathProgramCache]: Analyzing trace with hash -568074841, now seen corresponding path program 4 times [2020-10-13 17:26:15,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:26:15,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391488271] [2020-10-13 17:26:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:26:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:15,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:20,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 17:26:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:21,305 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-13 17:26:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:26:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:21,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:21,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:21,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:21,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-13 17:26:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:26:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:21,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:21,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:21,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:21,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:21,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:26:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:21,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:21,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:22,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:22,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 17:26:22,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:26:22,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-10-13 17:26:22,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:22,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 17:26:22,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 17:26:22,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 17:26:22,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:22,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:26:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:22,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:23,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:23,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:23,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 17:26:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:26:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:24,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:26:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:26:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:24,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:24,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:24,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:24,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:26:24,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 17:26:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:24,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:24,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:24,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:24,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:24,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:26:24,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:26:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:24,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:24,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:24,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:24,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:26:24,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:24,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:24,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:26:24,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 17:26:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:24,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:24,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:24,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:26:24,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:24,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:26:24,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:26:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 17:26:24,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391488271] [2020-10-13 17:26:24,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:26:24,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 17:26:24,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539179568] [2020-10-13 17:26:24,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 17:26:24,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:26:24,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 17:26:24,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-10-13 17:26:24,333 INFO L87 Difference]: Start difference. First operand 1373 states and 1786 transitions. Second operand 18 states.