/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 14:21:32,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 14:21:32,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 14:21:32,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 14:21:32,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 14:21:32,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 14:21:32,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 14:21:32,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 14:21:32,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 14:21:32,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 14:21:32,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 14:21:32,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 14:21:32,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 14:21:32,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 14:21:32,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 14:21:32,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 14:21:32,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 14:21:32,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 14:21:32,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 14:21:32,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 14:21:32,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 14:21:32,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 14:21:32,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 14:21:32,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 14:21:32,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 14:21:32,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 14:21:32,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 14:21:32,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 14:21:32,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 14:21:32,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 14:21:32,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 14:21:32,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 14:21:32,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 14:21:32,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 14:21:32,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 14:21:32,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 14:21:32,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 14:21:32,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 14:21:32,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 14:21:32,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 14:21:32,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 14:21:32,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-14 14:21:32,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 14:21:32,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 14:21:32,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 14:21:32,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 14:21:32,415 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 14:21:32,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 14:21:32,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 14:21:32,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 14:21:32,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 14:21:32,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 14:21:32,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 14:21:32,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 14:21:32,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 14:21:32,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 14:21:32,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 14:21:32,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 14:21:32,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 14:21:32,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 14:21:32,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 14:21:32,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 14:21:32,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 14:21:32,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 14:21:32,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 14:21:32,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 14:21:32,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 14:21:32,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 14:21:32,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 14:21:32,422 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 14:21:32,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 14:21:32,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 14:21:32,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 14:21:32,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 14:21:32,752 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 14:21:32,753 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2020-10-14 14:21:32,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2da4f2f9/4f61dde05ed34e41a63293b35a6a33ef/FLAG5e3f73b32 [2020-10-14 14:21:33,629 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 14:21:33,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2020-10-14 14:21:33,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2da4f2f9/4f61dde05ed34e41a63293b35a6a33ef/FLAG5e3f73b32 [2020-10-14 14:21:34,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2da4f2f9/4f61dde05ed34e41a63293b35a6a33ef [2020-10-14 14:21:34,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 14:21:34,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 14:21:34,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 14:21:34,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 14:21:34,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 14:21:34,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:21:34" (1/1) ... [2020-10-14 14:21:34,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d2791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:34, skipping insertion in model container [2020-10-14 14:21:34,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:21:34" (1/1) ... [2020-10-14 14:21:34,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 14:21:34,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 14:21:34,932 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3835] [2020-10-14 14:21:34,935 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3836-3837] [2020-10-14 14:21:35,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:21:36,028 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 14:21:36,134 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3835] [2020-10-14 14:21:36,134 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3836-3837] [2020-10-14 14:21:36,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:21:36,647 INFO L208 MainTranslator]: Completed translation [2020-10-14 14:21:36,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36 WrapperNode [2020-10-14 14:21:36,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 14:21:36,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 14:21:36,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 14:21:36,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 14:21:36,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... [2020-10-14 14:21:36,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 14:21:36,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 14:21:36,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 14:21:36,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 14:21:36,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 14:21:37,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 14:21:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 14:21:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 14:21:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-14 14:21:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 14:21:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-14 14:21:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_4 [2020-10-14 14:21:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-14 14:21:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_7 [2020-10-14 14:21:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:21:37,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 14:21:37,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-14 14:21:37,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 14:21:37,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 14:21:37,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 14:21:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2020-10-14 14:21:37,008 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2020-10-14 14:21:37,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_set_power_state [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_vsc_set_nmea [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_num_ports [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure is_blacklisted [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure is_himemory [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_interface [2020-10-14 14:21:37,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_probe [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_send_setup [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmget [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmset [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release_urb [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_outdat_callback [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write [2020-10-14 14:21:37,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_indat_callback [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_instat_callback [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write_room [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_chars_in_buffer [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_stop_rx_urbs [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_rx_urbs [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_setup_urb [2020-10-14 14:21:37,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_close [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_open [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_dtr_rts [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_startup [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_probe [2020-10-14 14:21:37,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_remove [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_read_write_urbs [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_suspend [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_delayed_urbs [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_resume [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_init [2020-10-14 14:21:37,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_exit [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2020-10-14 14:21:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2020-10-14 14:21:37,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_25 [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-14 14:21:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-14 14:21:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:21:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-14 14:21:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-14 14:21:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 14:21:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2020-10-14 14:21:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 14:21:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-14 14:21:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2020-10-14 14:21:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2020-10-14 14:21:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register_drivers [2020-10-14 14:21:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-14 14:21:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-14 14:21:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-14 14:21:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 14:21:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 14:21:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 14:21:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 14:21:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 14:21:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-14 14:21:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2020-10-14 14:21:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_4 [2020-10-14 14:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_7 [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-14 14:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 14:21:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 14:21:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-14 14:21:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2020-10-14 14:21:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-14 14:21:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_25 [2020-10-14 14:21:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2020-10-14 14:21:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-14 14:21:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2020-10-14 14:21:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register_drivers [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_set_power_state [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_vsc_set_nmea [2020-10-14 14:21:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_num_ports [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure is_blacklisted [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure is_himemory [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_interface [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_probe [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_send_setup [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmget [2020-10-14 14:21:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmset [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release_urb [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_outdat_callback [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_indat_callback [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_instat_callback [2020-10-14 14:21:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write_room [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_chars_in_buffer [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_stop_rx_urbs [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_rx_urbs [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_setup_urb [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_close [2020-10-14 14:21:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_open [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_dtr_rts [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_startup [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_probe [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_remove [2020-10-14 14:21:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure stop_read_write_urbs [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_suspend [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_delayed_urbs [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_resume [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_init [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_exit [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2020-10-14 14:21:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-14 14:21:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 14:21:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 14:21:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 14:21:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 14:21:38,046 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 14:21:46,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 14:21:46,038 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 14:21:46,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:21:46 BoogieIcfgContainer [2020-10-14 14:21:46,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 14:21:46,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 14:21:46,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 14:21:46,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 14:21:46,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:21:34" (1/3) ... [2020-10-14 14:21:46,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69056b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:21:46, skipping insertion in model container [2020-10-14 14:21:46,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:21:36" (2/3) ... [2020-10-14 14:21:46,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69056b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:21:46, skipping insertion in model container [2020-10-14 14:21:46,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:21:46" (3/3) ... [2020-10-14 14:21:46,058 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2020-10-14 14:21:46,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 14:21:46,077 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 14:21:46,092 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 14:21:46,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 14:21:46,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 14:21:46,119 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 14:21:46,119 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 14:21:46,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 14:21:46,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 14:21:46,120 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 14:21:46,120 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 14:21:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states. [2020-10-14 14:21:46,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 14:21:46,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:21:46,178 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:21:46,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:21:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:21:46,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2050945507, now seen corresponding path program 1 times [2020-10-14 14:21:46,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:21:46,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202340713] [2020-10-14 14:21:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:21:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:47,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 14:21:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 14:21:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5934 [2020-10-14 14:21:53,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:53,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:21:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 14:21:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 14:21:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 14:21:57,312 WARN L193 SmtUtils]: Spent 3.86 s on a formula simplification that was a NOOP. DAG size: 976 [2020-10-14 14:21:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:21:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:57,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:21:59,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:21:59,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2063 [2020-10-14 14:21:59,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:21:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:21:59,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:21:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:21:59,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:21:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:21:59,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:21:59,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:21:59,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:21:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:21:59,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:21:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:21:59,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:21:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:59,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:21:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:21:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:21:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 14:21:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:21:59,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:21:59,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:21:59,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:21:59,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:21:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 14:21:59,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:21:59,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:21:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:21:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:21:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:21:59,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:21:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:21:59,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202340713] [2020-10-14 14:21:59,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:21:59,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 14:21:59,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135281100] [2020-10-14 14:21:59,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 14:21:59,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:21:59,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 14:21:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 14:21:59,870 INFO L87 Difference]: Start difference. First operand 1178 states. Second operand 6 states. [2020-10-14 14:22:03,703 WARN L193 SmtUtils]: Spent 3.76 s on a formula simplification that was a NOOP. DAG size: 985 [2020-10-14 14:22:10,917 WARN L193 SmtUtils]: Spent 3.74 s on a formula simplification that was a NOOP. DAG size: 987 [2020-10-14 14:22:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:22:43,650 INFO L93 Difference]: Finished difference Result 2861 states and 4228 transitions. [2020-10-14 14:22:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 14:22:43,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-14 14:22:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:22:43,689 INFO L225 Difference]: With dead ends: 2861 [2020-10-14 14:22:43,690 INFO L226 Difference]: Without dead ends: 1691 [2020-10-14 14:22:43,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 14:22:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2020-10-14 14:22:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1209. [2020-10-14 14:22:44,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-14 14:22:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1616 transitions. [2020-10-14 14:22:44,193 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1616 transitions. Word has length 49 [2020-10-14 14:22:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:22:44,194 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1616 transitions. [2020-10-14 14:22:44,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 14:22:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1616 transitions. [2020-10-14 14:22:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 14:22:44,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:22:44,201 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-14 14:22:44,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 14:22:44,201 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:22:44,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:22:44,202 INFO L82 PathProgramCache]: Analyzing trace with hash 715069812, now seen corresponding path program 1 times [2020-10-14 14:22:44,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:22:44,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42565258] [2020-10-14 14:22:44,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:22:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:44,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:50,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:50,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 14:22:50,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:22:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6555 [2020-10-14 14:22:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:50,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:22:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 14:22:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 14:22:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:54,699 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification that was a NOOP. DAG size: 976 [2020-10-14 14:22:54,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:22:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:22:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1586 [2020-10-14 14:22:56,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:22:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:22:56,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:22:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:22:56,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:22:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:22:56,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:22:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:22:56,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:22:56,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 14:22:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:22:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 14:22:56,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 14:22:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 14:22:56,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:22:56,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:22:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:22:56,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:22:56,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 14:22:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 14:22:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 14:22:56,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:22:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 14:22:56,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:22:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:22:56,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 14:22:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:22:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:56,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 14:22:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:56,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:56,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:56,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:56,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:22:56,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:56,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:22:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 14:22:56,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42565258] [2020-10-14 14:22:56,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:22:56,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 14:22:56,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857975564] [2020-10-14 14:22:56,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 14:22:56,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:22:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 14:22:56,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 14:22:56,970 INFO L87 Difference]: Start difference. First operand 1209 states and 1616 transitions. Second operand 7 states. [2020-10-14 14:23:00,740 WARN L193 SmtUtils]: Spent 3.74 s on a formula simplification that was a NOOP. DAG size: 985 [2020-10-14 14:23:08,022 WARN L193 SmtUtils]: Spent 3.81 s on a formula simplification that was a NOOP. DAG size: 987 [2020-10-14 14:23:12,720 WARN L193 SmtUtils]: Spent 3.65 s on a formula simplification that was a NOOP. DAG size: 978 [2020-10-14 14:23:49,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:23:49,013 INFO L93 Difference]: Finished difference Result 3363 states and 4728 transitions. [2020-10-14 14:23:49,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 14:23:49,015 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-14 14:23:49,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:23:49,033 INFO L225 Difference]: With dead ends: 3363 [2020-10-14 14:23:49,033 INFO L226 Difference]: Without dead ends: 2171 [2020-10-14 14:23:49,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-14 14:23:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-10-14 14:23:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1564. [2020-10-14 14:23:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1564 states. [2020-10-14 14:23:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2048 transitions. [2020-10-14 14:23:49,587 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2048 transitions. Word has length 90 [2020-10-14 14:23:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:23:49,587 INFO L479 AbstractCegarLoop]: Abstraction has 1564 states and 2048 transitions. [2020-10-14 14:23:49,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 14:23:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2048 transitions. [2020-10-14 14:23:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 14:23:49,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:23:49,592 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-14 14:23:49,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 14:23:49,594 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:23:49,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:23:49,594 INFO L82 PathProgramCache]: Analyzing trace with hash 337509488, now seen corresponding path program 1 times [2020-10-14 14:23:49,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:23:49,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964351955] [2020-10-14 14:23:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:23:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:49,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:54,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:59,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10140 [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 14:23:59,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:23:59,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 14:23:59,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:04,169 WARN L193 SmtUtils]: Spent 3.99 s on a formula simplification that was a NOOP. DAG size: 976 [2020-10-14 14:24:04,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:24:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:04,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4035 [2020-10-14 14:24:08,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:24:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:24:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:24:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 14:24:08,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:24:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:24:08,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:24:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:24:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:24:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:24:08,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:24:08,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 14:24:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 14:24:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:24:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 14:24:08,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:08,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 14:24:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 14:24:08,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 14:24:08,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 14:24:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 14:24:08,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:24:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:24:08,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 14:24:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 14:24:08,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 14:24:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 14:24:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:24:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 14:24:08,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 14:24:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:24:08,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:08,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 14:24:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:08,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:08,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:08,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:08,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:08,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 14:24:08,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:08,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:08,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-14 14:24:08,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964351955] [2020-10-14 14:24:08,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:24:08,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 14:24:08,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708935309] [2020-10-14 14:24:08,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 14:24:08,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:24:08,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 14:24:08,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 14:24:08,901 INFO L87 Difference]: Start difference. First operand 1564 states and 2048 transitions. Second operand 7 states. [2020-10-14 14:24:12,854 WARN L193 SmtUtils]: Spent 3.92 s on a formula simplification that was a NOOP. DAG size: 985 [2020-10-14 14:24:19,156 WARN L193 SmtUtils]: Spent 3.97 s on a formula simplification that was a NOOP. DAG size: 987 [2020-10-14 14:24:23,104 WARN L193 SmtUtils]: Spent 3.79 s on a formula simplification that was a NOOP. DAG size: 978 [2020-10-14 14:25:03,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:25:03,157 INFO L93 Difference]: Finished difference Result 2340 states and 3229 transitions. [2020-10-14 14:25:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 14:25:03,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 14:25:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:25:03,175 INFO L225 Difference]: With dead ends: 2340 [2020-10-14 14:25:03,175 INFO L226 Difference]: Without dead ends: 2337 [2020-10-14 14:25:03,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-14 14:25:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2020-10-14 14:25:03,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 1714. [2020-10-14 14:25:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2020-10-14 14:25:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2231 transitions. [2020-10-14 14:25:03,718 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2231 transitions. Word has length 92 [2020-10-14 14:25:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:25:03,719 INFO L479 AbstractCegarLoop]: Abstraction has 1714 states and 2231 transitions. [2020-10-14 14:25:03,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 14:25:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2231 transitions. [2020-10-14 14:25:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-14 14:25:03,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:25:03,730 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:25:03,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 14:25:03,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:25:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:25:03,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1921934609, now seen corresponding path program 1 times [2020-10-14 14:25:03,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:25:03,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318574239] [2020-10-14 14:25:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:25:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:04,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:04,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking...