/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 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 -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 0.1.25-177f698 [2020-08-22 00:18:47,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 00:18:47,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 00:18:47,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 00:18:47,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 00:18:47,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 00:18:47,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 00:18:47,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 00:18:47,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 00:18:47,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 00:18:47,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 00:18:47,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 00:18:47,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 00:18:47,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 00:18:47,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 00:18:47,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 00:18:47,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 00:18:47,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 00:18:47,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 00:18:47,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 00:18:47,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 00:18:47,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 00:18:47,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 00:18:47,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 00:18:47,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 00:18:47,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 00:18:47,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 00:18:47,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 00:18:47,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 00:18:47,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 00:18:47,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 00:18:47,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 00:18:47,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 00:18:47,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 00:18:47,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 00:18:47,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 00:18:47,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 00:18:47,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 00:18:47,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 00:18:47,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 00:18:47,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 00:18:47,151 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 [2020-08-22 00:18:47,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 00:18:47,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 00:18:47,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 00:18:47,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 00:18:47,174 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 00:18:47,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 00:18:47,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 00:18:47,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 00:18:47,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 00:18:47,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 00:18:47,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 00:18:47,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 00:18:47,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 00:18:47,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 00:18:47,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 00:18:47,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 00:18:47,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 00:18:47,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 00:18:47,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 00:18:47,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 00:18:47,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 00:18:47,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 00:18:47,179 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 -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-22 00:18:47,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 00:18:47,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 00:18:47,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 00:18:47,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 00:18:47,504 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 00:18:47,505 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 00:18:47,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ccfd7489/4d9b2738434e4f87b97dee9c47f1326b/FLAGede3a4bc3 [2020-08-22 00:18:48,244 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 00:18:48,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 00:18:48,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ccfd7489/4d9b2738434e4f87b97dee9c47f1326b/FLAGede3a4bc3 [2020-08-22 00:18:48,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ccfd7489/4d9b2738434e4f87b97dee9c47f1326b [2020-08-22 00:18:48,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 00:18:48,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 00:18:48,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 00:18:48,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 00:18:48,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 00:18:48,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:18:48" (1/1) ... [2020-08-22 00:18:48,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f871ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:48, skipping insertion in model container [2020-08-22 00:18:48,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:18:48" (1/1) ... [2020-08-22 00:18:48,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 00:18:48,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 00:18:49,074 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 00:18:49,074 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] [2020-08-22 00:18:49,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:18:49,690 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 00:18:49,778 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 00:18:49,780 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] [2020-08-22 00:18:49,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:18:50,097 INFO L208 MainTranslator]: Completed translation [2020-08-22 00:18:50,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50 WrapperNode [2020-08-22 00:18:50,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 00:18:50,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 00:18:50,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 00:18:50,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 00:18:50,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (1/1) ... [2020-08-22 00:18:50,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 00:18:50,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 00:18:50,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 00:18:50,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 00:18:50,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (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 [2020-08-22 00:18:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 00:18:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 00:18:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 00:18:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-22 00:18:50,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 00:18:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-22 00:18:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-22 00:18:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-22 00:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-22 00:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-22 00:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-22 00:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-22 00:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-22 00:18:50,514 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-22 00:18:50,514 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-22 00:18:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-22 00:18:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-22 00:18:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 00:18:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 00:18:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-22 00:18:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-22 00:18:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-22 00:18:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-22 00:18:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-22 00:18:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-22 00:18:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-22 00:18:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-22 00:18:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-22 00:18:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-22 00:18:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-22 00:18:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-22 00:18:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-22 00:18:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-22 00:18:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-22 00:18:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-22 00:18:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-22 00:18:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-22 00:18:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-22 00:18:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-22 00:18:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-22 00:18:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-22 00:18:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-22 00:18:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-22 00:18:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-22 00:18:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-22 00:18:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-22 00:18:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-22 00:18:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-22 00:18:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-22 00:18:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-22 00:18:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-22 00:18:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-22 00:18:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-22 00:18:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-22 00:18:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-22 00:18:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-22 00:18:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-22 00:18:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-22 00:18:50,531 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 00:18:50,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-22 00:18:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-22 00:18:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-22 00:18:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 00:18:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-22 00:18:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-22 00:18:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-22 00:18:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-22 00:18:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-22 00:18:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-22 00:18:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-22 00:18:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-22 00:18:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-22 00:18:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 00:18:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-22 00:18:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-22 00:18:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 00:18:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 00:18:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 00:18:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 00:18:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-22 00:18:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 00:18:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-22 00:18:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-22 00:18:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-22 00:18:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-22 00:18:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-22 00:18:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-22 00:18:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-22 00:18:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-22 00:18:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-22 00:18:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-22 00:18:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-22 00:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-22 00:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 00:18:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 00:18:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 00:18:51,299 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-22 00:18:52,732 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 00:18:52,732 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 00:18:52,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:18:52 BoogieIcfgContainer [2020-08-22 00:18:52,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 00:18:52,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 00:18:52,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 00:18:52,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 00:18:52,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 12:18:48" (1/3) ... [2020-08-22 00:18:52,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c69ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:18:52, skipping insertion in model container [2020-08-22 00:18:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:18:50" (2/3) ... [2020-08-22 00:18:52,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c69ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:18:52, skipping insertion in model container [2020-08-22 00:18:52,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:18:52" (3/3) ... [2020-08-22 00:18:52,749 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 [2020-08-22 00:18:52,761 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 00:18:52,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 00:18:52,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 00:18:52,814 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 00:18:52,814 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 00:18:52,814 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 00:18:52,814 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 00:18:52,814 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 00:18:52,814 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 00:18:52,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 00:18:52,815 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 00:18:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-22 00:18:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 00:18:52,855 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:18:52,856 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] [2020-08-22 00:18:52,856 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:18:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:18:52,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-22 00:18:52,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:18:52,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462336320] [2020-08-22 00:18:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:18:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:18:53,846 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:18:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:18:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:18:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:18:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:18:53,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:18:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:18:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:18:53,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462336320] [2020-08-22 00:18:53,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:18:53,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 00:18:53,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939068833] [2020-08-22 00:18:53,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:18:54,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:18:54,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:18:54,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:18:54,012 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-22 00:18:54,757 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-22 00:19:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:02,064 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-22 00:19:02,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:19:02,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-22 00:19:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:02,091 INFO L225 Difference]: With dead ends: 1648 [2020-08-22 00:19:02,091 INFO L226 Difference]: Without dead ends: 834 [2020-08-22 00:19:02,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:19:02,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-22 00:19:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-22 00:19:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-22 00:19:02,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-22 00:19:02,308 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-22 00:19:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:02,308 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-22 00:19:02,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:19:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-22 00:19:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 00:19:02,311 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:02,312 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] [2020-08-22 00:19:02,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 00:19:02,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:02,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-22 00:19:02,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:02,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154220626] [2020-08-22 00:19:02,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,880 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:02,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:02,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 00:19:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:19:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:03,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:03,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154220626] [2020-08-22 00:19:03,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:19:03,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 00:19:03,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968473079] [2020-08-22 00:19:03,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:19:03,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:03,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:19:03,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:19:03,041 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-22 00:19:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:08,670 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-22 00:19:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 00:19:08,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-22 00:19:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:08,687 INFO L225 Difference]: With dead ends: 1640 [2020-08-22 00:19:08,687 INFO L226 Difference]: Without dead ends: 864 [2020-08-22 00:19:08,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:19:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-22 00:19:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-22 00:19:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-22 00:19:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-22 00:19:08,844 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-22 00:19:08,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:08,844 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-22 00:19:08,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:19:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-22 00:19:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 00:19:08,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:08,848 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] [2020-08-22 00:19:08,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 00:19:08,848 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:08,849 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-22 00:19:08,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:08,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519052677] [2020-08-22 00:19:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,387 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:19:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 00:19:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:09,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519052677] [2020-08-22 00:19:09,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:19:09,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 00:19:09,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501994686] [2020-08-22 00:19:09,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:19:09,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:09,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:19:09,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:19:09,593 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-22 00:19:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:17,196 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-22 00:19:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:19:17,197 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-22 00:19:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:17,204 INFO L225 Difference]: With dead ends: 1674 [2020-08-22 00:19:17,204 INFO L226 Difference]: Without dead ends: 894 [2020-08-22 00:19:17,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:19:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-22 00:19:17,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-22 00:19:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-22 00:19:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-22 00:19:17,318 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-22 00:19:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:17,319 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-22 00:19:17,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:19:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-22 00:19:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 00:19:17,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:17,322 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] [2020-08-22 00:19:17,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 00:19:17,322 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:17,323 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-22 00:19:17,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:17,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377601518] [2020-08-22 00:19:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,743 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:17,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 00:19:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 00:19:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:17,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377601518] [2020-08-22 00:19:17,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:19:17,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 00:19:17,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938481086] [2020-08-22 00:19:17,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 00:19:17,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:17,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 00:19:17,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:19:17,971 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-22 00:19:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:25,074 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-22 00:19:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 00:19:25,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-22 00:19:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:25,082 INFO L225 Difference]: With dead ends: 1734 [2020-08-22 00:19:25,083 INFO L226 Difference]: Without dead ends: 924 [2020-08-22 00:19:25,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-22 00:19:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-22 00:19:25,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-22 00:19:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-22 00:19:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-22 00:19:25,212 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-22 00:19:25,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:25,213 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-22 00:19:25,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 00:19:25,213 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-22 00:19:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-22 00:19:25,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:25,215 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] [2020-08-22 00:19:25,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 00:19:25,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:25,216 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-22 00:19:25,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:25,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849492444] [2020-08-22 00:19:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,632 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:25,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 00:19:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 00:19:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:25,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849492444] [2020-08-22 00:19:25,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:19:25,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 00:19:25,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922436783] [2020-08-22 00:19:25,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 00:19:25,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 00:19:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-22 00:19:25,841 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-22 00:19:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:32,018 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-22 00:19:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 00:19:32,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-22 00:19:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:32,027 INFO L225 Difference]: With dead ends: 1794 [2020-08-22 00:19:32,027 INFO L226 Difference]: Without dead ends: 954 [2020-08-22 00:19:32,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 00:19:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-22 00:19:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-22 00:19:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-22 00:19:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-22 00:19:32,182 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-22 00:19:32,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:32,182 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-22 00:19:32,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 00:19:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-22 00:19:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-22 00:19:32,184 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:32,185 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] [2020-08-22 00:19:32,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 00:19:32,185 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:32,185 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-22 00:19:32,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:32,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290975291] [2020-08-22 00:19:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,614 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:19:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 00:19:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:32,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290975291] [2020-08-22 00:19:32,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:19:32,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 00:19:32,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531371184] [2020-08-22 00:19:32,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 00:19:32,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:32,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 00:19:32,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 00:19:32,806 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states. [2020-08-22 00:19:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:19:42,055 INFO L93 Difference]: Finished difference Result 1854 states and 2458 transitions. [2020-08-22 00:19:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 00:19:42,057 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-08-22 00:19:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:19:42,065 INFO L225 Difference]: With dead ends: 1854 [2020-08-22 00:19:42,065 INFO L226 Difference]: Without dead ends: 984 [2020-08-22 00:19:42,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:19:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-08-22 00:19:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 927. [2020-08-22 00:19:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-22 00:19:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1221 transitions. [2020-08-22 00:19:42,267 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1221 transitions. Word has length 73 [2020-08-22 00:19:42,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:19:42,271 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1221 transitions. [2020-08-22 00:19:42,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 00:19:42,272 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1221 transitions. [2020-08-22 00:19:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-08-22 00:19:42,274 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:19:42,274 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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] [2020-08-22 00:19:42,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 00:19:42,275 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:19:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:19:42,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1523843977, now seen corresponding path program 5 times [2020-08-22 00:19:42,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:19:42,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515684330] [2020-08-22 00:19:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:19:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:42,913 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 00:19:42,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:19:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:42,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:19:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:19:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:19:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:43,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 00:19:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:43,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 00:19:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:43,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:19:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:19:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 00:19:43,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515684330] [2020-08-22 00:19:43,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:19:43,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 00:19:43,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365005376] [2020-08-22 00:19:43,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 00:19:43,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:19:43,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 00:19:43,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:19:43,129 INFO L87 Difference]: Start difference. First operand 927 states and 1221 transitions. Second operand 12 states.