/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 --traceabstraction.use.minimal.unsat.core.enumeration false -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--input--joystick--analog.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:00:46,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:00:46,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:00:46,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:00:46,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:00:46,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:00:46,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:00:46,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:00:46,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:00:46,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:00:46,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:00:46,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:00:46,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:00:46,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:00:46,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:00:46,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:00:46,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:00:46,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:00:46,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:00:46,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:00:46,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:00:46,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:00:46,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:00:46,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:00:46,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:00:46,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:00:46,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:00:46,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:00:46,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:00:46,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:00:46,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:00:46,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:00:46,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:00:46,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:00:46,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:00:46,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:00:46,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:00:46,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:00:46,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:00:47,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:00:47,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:00:47,002 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 [2020-09-21 11:00:47,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:00:47,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:00:47,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:00:47,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:00:47,030 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:00:47,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:00:47,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:00:47,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:00:47,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:00:47,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:00:47,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:00:47,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:00:47,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:00:47,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:00:47,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:00:47,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:00:47,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:00:47,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:00:47,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:00:47,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:00:47,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:00:47,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:00:47,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:00:47,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:00:47,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:00:47,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:00:47,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 11:00:47,035 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.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-21 11:00:47,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:00:47,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:00:47,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:00:47,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:00:47,512 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:00:47,514 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 11:00:47,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854541876/aac4989142a6477daf9eb352f1d23c32/FLAGd326a2aca [2020-09-21 11:00:48,458 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:00:48,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 11:00:48,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854541876/aac4989142a6477daf9eb352f1d23c32/FLAGd326a2aca [2020-09-21 11:00:48,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/854541876/aac4989142a6477daf9eb352f1d23c32 [2020-09-21 11:00:49,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:00:49,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:00:49,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:00:49,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:00:49,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:00:49,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:00:48" (1/1) ... [2020-09-21 11:00:49,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c04ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:49, skipping insertion in model container [2020-09-21 11:00:49,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:00:48" (1/1) ... [2020-09-21 11:00:49,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:00:49,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:00:49,739 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-21 11:00:49,740 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-21 11:00:50,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:00:50,475 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:00:50,598 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-21 11:00:50,599 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-21 11:00:50,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:00:50,884 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:00:50,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50 WrapperNode [2020-09-21 11:00:50,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:00:50,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:00:50,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:00:50,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:00:50,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:50,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:50,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:50,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:51,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:51,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:51,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (1/1) ... [2020-09-21 11:00:51,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:00:51,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:00:51,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:00:51,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:00:51,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (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 [2020-09-21 11:00:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:00:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:00:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 11:00:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-09-21 11:00:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 11:00:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-09-21 11:00:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-09-21 11:00:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-09-21 11:00:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-09-21 11:00:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-09-21 11:00:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-21 11:00:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-09-21 11:00:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-09-21 11:00:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-09-21 11:00:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-21 11:00:51,206 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 11:00:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 11:00:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 11:00:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 11:00:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 11:00:51,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 11:00:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 11:00:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 11:00:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 11:00:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-21 11:00:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-21 11:00:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-21 11:00:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-21 11:00:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-09-21 11:00:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-09-21 11:00:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-09-21 11:00:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-09-21 11:00:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-09-21 11:00:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-09-21 11:00:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-09-21 11:00:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-09-21 11:00:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-09-21 11:00:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-09-21 11:00:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-09-21 11:00:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-09-21 11:00:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-09-21 11:00:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-09-21 11:00:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-09-21 11:00:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-09-21 11:00:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-09-21 11:00:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-09-21 11:00:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-09-21 11:00:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-09-21 11:00:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-09-21 11:00:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-09-21 11:00:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-09-21 11:00:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-09-21 11:00:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-09-21 11:00:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-09-21 11:00:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-09-21 11:00:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-09-21 11:00:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-09-21 11:00:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-09-21 11:00:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-09-21 11:00:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-09-21 11:00:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:00:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 11:00:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-21 11:00:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 11:00:51,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-09-21 11:00:51,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-09-21 11:00:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-09-21 11:00:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-09-21 11:00:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-09-21 11:00:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-09-21 11:00:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-09-21 11:00:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-21 11:00:51,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-09-21 11:00:51,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 11:00:51,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 11:00:51,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-21 11:00:51,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-09-21 11:00:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 11:00:51,262 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 11:00:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:00:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-21 11:00:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-09-21 11:00:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-09-21 11:00:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-21 11:00:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-09-21 11:00:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 11:00:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 11:00:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:00:51,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 11:00:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 11:00:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:00:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 11:00:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 11:00:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 11:00:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 11:00:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 11:00:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 11:00:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-21 11:00:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-09-21 11:00:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-09-21 11:00:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 11:00:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-21 11:00:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-21 11:00:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-21 11:00:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-09-21 11:00:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-09-21 11:00:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-09-21 11:00:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-09-21 11:00:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-09-21 11:00:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-09-21 11:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-09-21 11:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-09-21 11:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 11:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-21 11:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-21 11:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-21 11:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-21 11:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:00:52,097 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 11:00:53,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:00:53,644 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:00:53,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:00:53 BoogieIcfgContainer [2020-09-21 11:00:53,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:00:53,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:00:53,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:00:53,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:00:53,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:00:48" (1/3) ... [2020-09-21 11:00:53,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:00:53, skipping insertion in model container [2020-09-21 11:00:53,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:00:50" (2/3) ... [2020-09-21 11:00:53,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:00:53, skipping insertion in model container [2020-09-21 11:00:53,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:00:53" (3/3) ... [2020-09-21 11:00:53,668 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 11:00:53,679 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:00:53,690 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:00:53,713 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:00:53,746 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:00:53,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:00:53,747 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:00:53,747 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:00:53,747 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:00:53,747 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:00:53,748 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:00:53,748 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:00:53,788 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-09-21 11:00:53,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 11:00:53,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:00:53,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:00:53,799 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:00:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:00:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-09-21 11:00:53,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:00:53,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537022626] [2020-09-21 11:00:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:00:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:00:54,923 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:00:54,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:00:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:00:55,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:00:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:00:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:00:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:00:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:00:55,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537022626] [2020-09-21 11:00:55,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:00:55,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:00:55,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912547345] [2020-09-21 11:00:55,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:00:55,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:00:55,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:00:55,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:00:55,102 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-09-21 11:00:56,076 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 11:01:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:01:04,645 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-09-21 11:01:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:01:04,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-21 11:01:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:01:04,677 INFO L225 Difference]: With dead ends: 1648 [2020-09-21 11:01:04,677 INFO L226 Difference]: Without dead ends: 834 [2020-09-21 11:01:04,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:01:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-09-21 11:01:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-09-21 11:01:04,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-09-21 11:01:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-09-21 11:01:04,892 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-09-21 11:01:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:01:04,893 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-09-21 11:01:04,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:01:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-09-21 11:01:04,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:01:04,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:01:04,897 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:01:04,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:01:04,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:01:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:01:04,898 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-09-21 11:01:04,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:01:04,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19245258] [2020-09-21 11:01:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:01:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,629 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:01:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:01:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:01:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:01:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:01:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 11:01:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:01:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:01:05,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19245258] [2020-09-21 11:01:05,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:01:05,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:01:05,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357240757] [2020-09-21 11:01:05,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:01:05,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:01:05,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:01:05,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:01:05,840 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-09-21 11:01:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:01:12,420 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-09-21 11:01:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:01:12,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 11:01:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:01:12,433 INFO L225 Difference]: With dead ends: 1640 [2020-09-21 11:01:12,433 INFO L226 Difference]: Without dead ends: 864 [2020-09-21 11:01:12,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:01:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-09-21 11:01:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-09-21 11:01:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-09-21 11:01:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-09-21 11:01:12,595 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-09-21 11:01:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:01:12,595 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-09-21 11:01:12,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:01:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-09-21 11:01:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:01:12,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:01:12,606 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:01:12,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:01:12,606 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:01:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:01:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-09-21 11:01:12,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:01:12,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50108134] [2020-09-21 11:01:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:01:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,270 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:01:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:01:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:01:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:01:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:01:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:01:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:01:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:01:13,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50108134] [2020-09-21 11:01:13,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:01:13,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:01:13,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986298106] [2020-09-21 11:01:13,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:01:13,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:01:13,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:01:13,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:01:13,543 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-09-21 11:01:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:01:21,269 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-09-21 11:01:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:01:21,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-21 11:01:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:01:21,283 INFO L225 Difference]: With dead ends: 1674 [2020-09-21 11:01:21,283 INFO L226 Difference]: Without dead ends: 894 [2020-09-21 11:01:21,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:01:21,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-21 11:01:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-09-21 11:01:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-09-21 11:01:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-09-21 11:01:21,422 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-09-21 11:01:21,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:01:21,422 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-09-21 11:01:21,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:01:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-09-21 11:01:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:01:21,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:01:21,425 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:01:21,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:01:21,425 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:01:21,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:01:21,426 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-09-21 11:01:21,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:01:21,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214748320] [2020-09-21 11:01:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:01:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,155 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:01:22,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:01:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:01:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:01:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:01:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:01:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:01:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:01:22,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214748320] [2020-09-21 11:01:22,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:01:22,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:01:22,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109415869] [2020-09-21 11:01:22,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:01:22,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:01:22,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:01:22,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:01:22,411 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-09-21 11:01:31,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:01:31,418 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-09-21 11:01:31,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:01:31,420 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-21 11:01:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:01:31,429 INFO L225 Difference]: With dead ends: 1734 [2020-09-21 11:01:31,429 INFO L226 Difference]: Without dead ends: 924 [2020-09-21 11:01:31,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:01:31,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-09-21 11:01:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-09-21 11:01:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-09-21 11:01:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-09-21 11:01:31,559 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-09-21 11:01:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:01:31,560 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-09-21 11:01:31,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:01:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-09-21 11:01:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-21 11:01:31,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:01:31,563 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:01:31,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:01:31,563 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:01:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:01:31,564 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-09-21 11:01:31,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:01:31,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950060683] [2020-09-21 11:01:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:01:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,160 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:01:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:01:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:01:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:01:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:01:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:01:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:01:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:01:32,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950060683] [2020-09-21 11:01:32,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:01:32,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:01:32,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992246825] [2020-09-21 11:01:32,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:01:32,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:01:32,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:01:32,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:01:32,430 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-09-21 11:01:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:01:39,582 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-09-21 11:01:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:01:39,584 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-21 11:01:39,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:01:39,590 INFO L225 Difference]: With dead ends: 1794 [2020-09-21 11:01:39,590 INFO L226 Difference]: Without dead ends: 954 [2020-09-21 11:01:39,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:01:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-09-21 11:01:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-09-21 11:01:39,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-09-21 11:01:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-09-21 11:01:39,769 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-09-21 11:01:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:01:39,771 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-09-21 11:01:39,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:01:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-09-21 11:01:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:01:39,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:01:39,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-09-21 11:01:39,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:01:39,773 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:01:39,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:01:39,773 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-09-21 11:01:39,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:01:39,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252655479] [2020-09-21 11:01:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:01:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,388 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 11:01:40,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:01:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:01:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:01:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:01:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:01:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:01:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:01:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:01:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:01:40,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252655479] [2020-09-21 11:01:40,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:01:40,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:01:40,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377710689] [2020-09-21 11:01:40,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:01:40,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:01:40,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:01:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:01:40,727 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.