/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--misc--pch_phub.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:30:03,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:30:03,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:30:03,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:30:03,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:30:03,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:30:03,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:30:03,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:30:03,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:30:03,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:30:03,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:30:03,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:30:03,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:30:03,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:30:03,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:30:03,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:30:03,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:30:03,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:30:03,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:30:03,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:30:03,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:30:03,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:30:03,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:30:03,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:30:03,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:30:03,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:30:03,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:30:03,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:30:03,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:30:03,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:30:03,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:30:03,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:30:03,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:30:03,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:30:03,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:30:03,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:30:03,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:30:03,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:30:03,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:30:03,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:30:03,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:30:03,192 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 17:30:03,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:30:03,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:30:03,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:30:03,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:30:03,228 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:30:03,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:30:03,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:30:03,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:30:03,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:30:03,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:30:03,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:30:03,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:30:03,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:30:03,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:30:03,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:30:03,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:30:03,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:30:03,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:30:03,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:30:03,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:30:03,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:30:03,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:30:03,234 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 17:30:03,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:30:03,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:30:03,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:30:03,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:30:03,571 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:30:03,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2020-10-13 17:30:03,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2626a763/dda5babc8ac04849832f9f5313506fcb/FLAG9ababc0a4 [2020-10-13 17:30:04,283 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:30:04,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2020-10-13 17:30:04,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2626a763/dda5babc8ac04849832f9f5313506fcb/FLAG9ababc0a4 [2020-10-13 17:30:04,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2626a763/dda5babc8ac04849832f9f5313506fcb [2020-10-13 17:30:04,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:30:04,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:30:04,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:30:04,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:30:04,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:30:04,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:30:04" (1/1) ... [2020-10-13 17:30:04,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234e7026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:04, skipping insertion in model container [2020-10-13 17:30:04,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:30:04" (1/1) ... [2020-10-13 17:30:04,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:30:04,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:30:05,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:30:05,608 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:30:05,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:30:05,942 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:30:05,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05 WrapperNode [2020-10-13 17:30:05,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:30:05,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:30:05,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:30:05,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:30:05,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:05,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (1/1) ... [2020-10-13 17:30:06,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:30:06,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:30:06,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:30:06,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:30:06,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (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 17:30:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:30:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:30:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2020-10-13 17:30:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:30:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 17:30:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:30:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:30:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:30:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 17:30:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_save_reg_conf [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_restore_reg_conf [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2020-10-13 17:30:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2020-10-13 17:30:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom_val [2020-10-13 17:30:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom_val [2020-10-13 17:30:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf [2020-10-13 17:30:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf_mp [2020-10-13 17:30:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_gbe_mac_addr [2020-10-13 17:30:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_gbe_mac_addr [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_read [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_write [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pch_mac [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pch_mac [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_probe [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2020-10-13 17:30:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_suspend [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_resume [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_init [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_exit [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:30:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_8 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2020-10-13 17:30:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:30:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:30:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:30:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:30:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:30:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:30:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:30:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:30:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:30:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:30:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pch_phub_mutex [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pch_phub_mutex [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pch_phub_mutex [2020-10-13 17:30:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2020-10-13 17:30:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pch_phub_mutex [2020-10-13 17:30:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2020-10-13 17:30:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:30:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:30:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-13 17:30:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_enable_wake [2020-10-13 17:30:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2020-10-13 17:30:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 17:30:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_probe_2 [2020-10-13 17:30:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_release_2 [2020-10-13 17:30:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-13 17:30:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2020-10-13 17:30:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2020-10-13 17:30:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_bin_file [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2020-10-13 17:30:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:30:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-13 17:30:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:30:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_8 [2020-10-13 17:30:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-13 17:30:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-13 17:30:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2020-10-13 17:30:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2020-10-13 17:30:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2020-10-13 17:30:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:30:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:30:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:30:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:30:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:30:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:30:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:30:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:30:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2020-10-13 17:30:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2020-10-13 17:30:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:30:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2020-10-13 17:30:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2020-10-13 17:30:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2020-10-13 17:30:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_bin_file [2020-10-13 17:30:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 17:30:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 17:30:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 17:30:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2020-10-13 17:30:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_enable_wake [2020-10-13 17:30:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:30:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2020-10-13 17:30:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_save_reg_conf [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:30:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_restore_reg_conf [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom_val [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom_val [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf_mp [2020-10-13 17:30:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_gbe_mac_addr [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_gbe_mac_addr [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_read [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_write [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure show_pch_mac [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure store_pch_mac [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_probe [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2020-10-13 17:30:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_suspend [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_resume [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_init [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_exit [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_release_2 [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_probe_2 [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:30:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:30:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pch_phub_mutex [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pch_phub_mutex [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pch_phub_mutex [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2020-10-13 17:30:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pch_phub_mutex [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:30:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:30:09,974 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:30:09,980 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:30:09,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:30:09 BoogieIcfgContainer [2020-10-13 17:30:09,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:30:09,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:30:09,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:30:09,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:30:09,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:30:04" (1/3) ... [2020-10-13 17:30:09,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7538354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:30:09, skipping insertion in model container [2020-10-13 17:30:09,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:05" (2/3) ... [2020-10-13 17:30:09,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7538354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:30:09, skipping insertion in model container [2020-10-13 17:30:09,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:30:09" (3/3) ... [2020-10-13 17:30:09,998 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2020-10-13 17:30:10,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:30:10,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:30:10,031 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:30:10,058 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:30:10,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:30:10,058 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:30:10,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:30:10,059 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:30:10,059 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:30:10,059 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:30:10,059 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:30:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states. [2020-10-13 17:30:10,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-13 17:30:10,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:30:10,111 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] [2020-10-13 17:30:10,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:30:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:30:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1951538702, now seen corresponding path program 1 times [2020-10-13 17:30:10,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:30:10,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493470202] [2020-10-13 17:30:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:30:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:14,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:14,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:30:14,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:30:14,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3435 [2020-10-13 17:30:14,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:30:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:30:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:30:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 17:30:16,105 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:30:16,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:30:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:16,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-13 17:30:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:30:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:16,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:16,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:16,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:30:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:30:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:16,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:16,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 17:30:16,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:16,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:30:16,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:16,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 17:30:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:16,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:30:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:16,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:16,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:30:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:16,448 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 17:30:16,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493470202] [2020-10-13 17:30:16,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:30:16,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:30:16,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422441211] [2020-10-13 17:30:16,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:30:16,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:30:16,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:30:16,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:30:16,474 INFO L87 Difference]: Start difference. First operand 854 states. Second operand 5 states. [2020-10-13 17:30:19,439 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:30:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:30:46,510 INFO L93 Difference]: Finished difference Result 2458 states and 3418 transitions. [2020-10-13 17:30:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:30:46,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-13 17:30:46,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:30:46,545 INFO L225 Difference]: With dead ends: 2458 [2020-10-13 17:30:46,546 INFO L226 Difference]: Without dead ends: 1687 [2020-10-13 17:30:46,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:30:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-10-13 17:30:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1491. [2020-10-13 17:30:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-13 17:30:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1982 transitions. [2020-10-13 17:30:47,109 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1982 transitions. Word has length 29 [2020-10-13 17:30:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:30:47,109 INFO L479 AbstractCegarLoop]: Abstraction has 1491 states and 1982 transitions. [2020-10-13 17:30:47,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:30:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1982 transitions. [2020-10-13 17:30:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 17:30:47,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:30:47,114 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 17:30:47,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:30:47,114 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:30:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:30:47,115 INFO L82 PathProgramCache]: Analyzing trace with hash -297332670, now seen corresponding path program 1 times [2020-10-13 17:30:47,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:30:47,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795046699] [2020-10-13 17:30:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:30:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:47,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:49,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:49,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 17:30:49,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:30:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2500 [2020-10-13 17:30:49,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:30:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 17:30:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:30:49,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:51,515 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:30:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:30:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:51,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 17:30:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:51,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:30:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:51,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:51,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:51,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:30:51,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:51,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:30:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:51,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:30:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:30:51,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:51,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:30:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:30:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:30:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:30:51,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:30:51,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:30:51,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:30:51,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:30:51,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:30:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:30:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:30:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:30:51,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:30:51,883 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 17:30:51,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795046699] [2020-10-13 17:30:51,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:30:51,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:30:51,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384641811] [2020-10-13 17:30:51,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:30:51,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:30:51,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:30:51,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:30:51,888 INFO L87 Difference]: Start difference. First operand 1491 states and 1982 transitions. Second operand 5 states. [2020-10-13 17:30:54,474 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:31:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:31:08,842 INFO L93 Difference]: Finished difference Result 1701 states and 2294 transitions. [2020-10-13 17:31:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:31:08,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-13 17:31:08,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:31:08,855 INFO L225 Difference]: With dead ends: 1701 [2020-10-13 17:31:08,855 INFO L226 Difference]: Without dead ends: 1692 [2020-10-13 17:31:08,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:31:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-10-13 17:31:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1491. [2020-10-13 17:31:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-13 17:31:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1981 transitions. [2020-10-13 17:31:09,315 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1981 transitions. Word has length 34 [2020-10-13 17:31:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:31:09,316 INFO L479 AbstractCegarLoop]: Abstraction has 1491 states and 1981 transitions. [2020-10-13 17:31:09,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:31:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1981 transitions. [2020-10-13 17:31:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 17:31:09,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:31:09,318 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 17:31:09,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:31:09,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:31:09,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:31:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash -240074368, now seen corresponding path program 1 times [2020-10-13 17:31:09,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:31:09,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541908518] [2020-10-13 17:31:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:31:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:09,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:10,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:10,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 17:31:10,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:10,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-10-13 17:31:10,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:31:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 17:31:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:12,163 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:31:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:12,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:12,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:12,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:12,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-13 17:31:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:12,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:31:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:12,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:12,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:12,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:12,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:12,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:31:12,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:12,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:31:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:12,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:31:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:31:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:31:12,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:31:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:31:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:12,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:12,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:12,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:12,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:12,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:31:12,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:12,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:12,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:12,459 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 17:31:12,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541908518] [2020-10-13 17:31:12,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:31:12,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:31:12,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841944296] [2020-10-13 17:31:12,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:31:12,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:31:12,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:31:12,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:31:12,462 INFO L87 Difference]: Start difference. First operand 1491 states and 1981 transitions. Second operand 5 states. [2020-10-13 17:31:16,797 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:31:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:31:30,277 INFO L93 Difference]: Finished difference Result 1685 states and 2274 transitions. [2020-10-13 17:31:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:31:30,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-13 17:31:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:31:30,290 INFO L225 Difference]: With dead ends: 1685 [2020-10-13 17:31:30,290 INFO L226 Difference]: Without dead ends: 1682 [2020-10-13 17:31:30,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:31:30,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2020-10-13 17:31:30,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1490. [2020-10-13 17:31:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-10-13 17:31:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1979 transitions. [2020-10-13 17:31:30,723 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1979 transitions. Word has length 34 [2020-10-13 17:31:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:31:30,724 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1979 transitions. [2020-10-13 17:31:30,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:31:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1979 transitions. [2020-10-13 17:31:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-13 17:31:30,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:31:30,729 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] [2020-10-13 17:31:30,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:31:30,729 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:31:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:31:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1147073012, now seen corresponding path program 1 times [2020-10-13 17:31:30,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:31:30,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533228246] [2020-10-13 17:31:30,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:31:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:31,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 17:31:31,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:31,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-10-13 17:31:31,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:31:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 17:31:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:33,711 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:31:33,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:33,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:33,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:33,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:33,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:33,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 17:31:33,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:33,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:34,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:31:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:34,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:34,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:34,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:34,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:31:34,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:31:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:34,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:31:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:34,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:34,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:31:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:31:34,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:31:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:31:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:34,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:34,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:31:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:34,053 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 17:31:34,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533228246] [2020-10-13 17:31:34,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:31:34,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:31:34,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405689740] [2020-10-13 17:31:34,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:31:34,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:31:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:31:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:31:34,055 INFO L87 Difference]: Start difference. First operand 1490 states and 1979 transitions. Second operand 5 states. [2020-10-13 17:31:36,840 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:31:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:31:50,185 INFO L93 Difference]: Finished difference Result 1684 states and 2272 transitions. [2020-10-13 17:31:50,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:31:50,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-10-13 17:31:50,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:31:50,200 INFO L225 Difference]: With dead ends: 1684 [2020-10-13 17:31:50,200 INFO L226 Difference]: Without dead ends: 1681 [2020-10-13 17:31:50,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:31:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-10-13 17:31:50,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1489. [2020-10-13 17:31:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-10-13 17:31:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1977 transitions. [2020-10-13 17:31:50,662 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1977 transitions. Word has length 35 [2020-10-13 17:31:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:31:50,662 INFO L479 AbstractCegarLoop]: Abstraction has 1489 states and 1977 transitions. [2020-10-13 17:31:50,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:31:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1977 transitions. [2020-10-13 17:31:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-13 17:31:50,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:31:50,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:31:50,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:31:50,665 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:31:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:31:50,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1198973699, now seen corresponding path program 1 times [2020-10-13 17:31:50,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:31:50,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138809781] [2020-10-13 17:31:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:31:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:50,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:51,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 17:31:51,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-10-13 17:31:51,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:51,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:31:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 17:31:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:53,370 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:31:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:53,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:53,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:53,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:53,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 17:31:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:31:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:53,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:53,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:53,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:31:53,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:31:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:31:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:53,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:53,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:53,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:31:53,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:53,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:31:53,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:31:53,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:53,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:31:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:53,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:53,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:53,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:31:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:53,640 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 17:31:53,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138809781] [2020-10-13 17:31:53,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:31:53,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:31:53,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144066522] [2020-10-13 17:31:53,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:31:53,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:31:53,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:31:53,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:31:53,642 INFO L87 Difference]: Start difference. First operand 1489 states and 1977 transitions. Second operand 5 states. [2020-10-13 17:31:56,687 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:32:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:32:24,175 INFO L93 Difference]: Finished difference Result 4555 states and 6133 transitions. [2020-10-13 17:32:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:32:24,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-13 17:32:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:32:24,197 INFO L225 Difference]: With dead ends: 4555 [2020-10-13 17:32:24,198 INFO L226 Difference]: Without dead ends: 3065 [2020-10-13 17:32:24,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:32:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2020-10-13 17:32:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2886. [2020-10-13 17:32:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-13 17:32:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3867 transitions. [2020-10-13 17:32:24,947 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3867 transitions. Word has length 36 [2020-10-13 17:32:24,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:32:24,947 INFO L479 AbstractCegarLoop]: Abstraction has 2886 states and 3867 transitions. [2020-10-13 17:32:24,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:32:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3867 transitions. [2020-10-13 17:32:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 17:32:24,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:32:24,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:32:24,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:32:24,952 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:32:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:32:24,952 INFO L82 PathProgramCache]: Analyzing trace with hash 720470094, now seen corresponding path program 1 times [2020-10-13 17:32:24,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:32:24,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697874438] [2020-10-13 17:32:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:32:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:25,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:25,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:25,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:28,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:30,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:30,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 17:32:30,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:32:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-13 17:32:30,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:32:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:32:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:32:30,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:31,910 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:32:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:32:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:31,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:32,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 17:32:32,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:32:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 17:32:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:32:32,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:32:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 17:32:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:32:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:32:32,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:32:32,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 17:32:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:32:32,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:32:32,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 17:32:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:32:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:32,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:32:32,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:32:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:32:32,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:32:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:32,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 17:32:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:32,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:32,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:32,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:32,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:32,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:32:32,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:32:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:32:32,239 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 17:32:32,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697874438] [2020-10-13 17:32:32,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:32:32,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:32:32,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675611649] [2020-10-13 17:32:32,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:32:32,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:32:32,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:32:32,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:32:32,242 INFO L87 Difference]: Start difference. First operand 2886 states and 3867 transitions. Second operand 7 states. [2020-10-13 17:32:34,674 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:32:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:32:59,891 INFO L93 Difference]: Finished difference Result 8667 states and 11746 transitions. [2020-10-13 17:32:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:32:59,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-13 17:32:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:32:59,925 INFO L225 Difference]: With dead ends: 8667 [2020-10-13 17:32:59,925 INFO L226 Difference]: Without dead ends: 5792 [2020-10-13 17:32:59,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:32:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2020-10-13 17:33:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 4671. [2020-10-13 17:33:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4671 states. [2020-10-13 17:33:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 6244 transitions. [2020-10-13 17:33:00,992 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 6244 transitions. Word has length 65 [2020-10-13 17:33:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:00,993 INFO L479 AbstractCegarLoop]: Abstraction has 4671 states and 6244 transitions. [2020-10-13 17:33:00,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:33:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 6244 transitions. [2020-10-13 17:33:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 17:33:00,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:00,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:33:00,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:33:00,999 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:01,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1740235037, now seen corresponding path program 1 times [2020-10-13 17:33:01,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:01,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662053348] [2020-10-13 17:33:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:06,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:06,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 17:33:06,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:33:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-13 17:33:06,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 17:33:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 17:33:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,119 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:33:08,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:08,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 17:33:08,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:08,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:08,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:33:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:08,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 17:33:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 17:33:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:33:08,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:08,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 17:33:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:33:08,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:33:08,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 17:33:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:33:08,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:08,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:33:08,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 17:33:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:08,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:33:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:08,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:33:08,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662053348] [2020-10-13 17:33:08,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:08,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:33:08,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46717225] [2020-10-13 17:33:08,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:33:08,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:08,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:33:08,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:33:08,506 INFO L87 Difference]: Start difference. First operand 4671 states and 6244 transitions. Second operand 7 states. [2020-10-13 17:33:11,453 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 579 [2020-10-13 17:33:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:33:30,029 INFO L93 Difference]: Finished difference Result 12455 states and 16855 transitions. [2020-10-13 17:33:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:33:30,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-13 17:33:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:33:30,066 INFO L225 Difference]: With dead ends: 12455 [2020-10-13 17:33:30,067 INFO L226 Difference]: Without dead ends: 7795 [2020-10-13 17:33:30,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:33:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2020-10-13 17:33:31,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 7083. [2020-10-13 17:33:31,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7083 states. [2020-10-13 17:33:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 9472 transitions. [2020-10-13 17:33:31,504 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 9472 transitions. Word has length 84 [2020-10-13 17:33:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:31,505 INFO L479 AbstractCegarLoop]: Abstraction has 7083 states and 9472 transitions. [2020-10-13 17:33:31,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:33:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 9472 transitions. [2020-10-13 17:33:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 17:33:31,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:31,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:33:31,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 17:33:31,513 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:31,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:31,514 INFO L82 PathProgramCache]: Analyzing trace with hash 204244864, now seen corresponding path program 1 times [2020-10-13 17:33:31,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:31,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549444271] [2020-10-13 17:33:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:35,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:35,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 17:33:35,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:33:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3667 [2020-10-13 17:33:35,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:33:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 17:33:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 17:33:35,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,052 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-13 17:33:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:38,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:33:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 17:33:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 17:33:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:33:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:33:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:33:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:38,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 17:33:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:33:38,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:33:38,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 17:33:38,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:33:38,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:33:38,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:33:38,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:33:38,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:33:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:38,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 17:33:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:38,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:38,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:38,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:38,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:38,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:33:38,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:38,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:33:38,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:33:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 17:33:38,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549444271] [2020-10-13 17:33:38,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:38,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:33:38,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134622617] [2020-10-13 17:33:38,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:33:38,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:38,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:33:38,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:33:38,535 INFO L87 Difference]: Start difference. First operand 7083 states and 9472 transitions. Second operand 7 states. [2020-10-13 17:33:43,200 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 580