/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --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-eb0fd7c [2020-09-21 12:02:58,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:02:58,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:02:58,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:02:58,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:02:58,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:02:58,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:02:58,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:02:58,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:02:58,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:02:58,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:02:58,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:02:58,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:02:58,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:02:58,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:02:58,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:02:58,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:02:58,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:02:58,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:02:58,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:02:58,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:02:58,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:02:58,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:02:58,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:02:58,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:02:58,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:02:58,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:02:58,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:02:58,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:02:58,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:02:58,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:02:58,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:02:58,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:02:58,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:02:58,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:02:58,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:02:58,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:02:58,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:02:58,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:02:58,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:02:58,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:02:58,624 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 12:02:58,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:02:58,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:02:58,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:02:58,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:02:58,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:02:58,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:02:58,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:02:58,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:02:58,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:02:58,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:02:58,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:02:58,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:02:58,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:02:58,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:02:58,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:02:58,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:02:58,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:02:58,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:02:58,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:02:58,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:02:58,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:02:58,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:02:58,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:02:58,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:02:58,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:02:58,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:02:58,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 12:02:58,674 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 12:02:59,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:02:59,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:02:59,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:02:59,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:02:59,158 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:02:59,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 12:02:59,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8755d6204/2354df2b75324f0b80f609178df3c4cd/FLAGc6357092f [2020-09-21 12:03:00,064 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:03:00,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 12:03:00,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8755d6204/2354df2b75324f0b80f609178df3c4cd/FLAGc6357092f [2020-09-21 12:03:00,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8755d6204/2354df2b75324f0b80f609178df3c4cd [2020-09-21 12:03:00,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:03:00,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:03:00,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:03:00,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:03:00,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:03:00,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:03:00" (1/1) ... [2020-09-21 12:03:00,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e82564c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:00, skipping insertion in model container [2020-09-21 12:03:00,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:03:00" (1/1) ... [2020-09-21 12:03:00,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:03:00,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:03:01,323 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 12:03:01,324 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 12:03:02,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:03:02,262 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:03:02,342 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 12:03:02,343 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 12:03:02,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:03:02,604 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:03:02,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02 WrapperNode [2020-09-21 12:03:02,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:03:02,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:03:02,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:03:02,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:03:02,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (1/1) ... [2020-09-21 12:03:02,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:03:02,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:03:02,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:03:02,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:03:02,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (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 12:03:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:03:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:03:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 12:03:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-09-21 12:03:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 12:03:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-21 12:03:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 12:03:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:03:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 12:03:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 12:03:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 12:03:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 12:03:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-21 12:03:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-09-21 12:03:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-09-21 12:03:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-09-21 12:03:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-09-21 12:03:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-09-21 12:03:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-09-21 12:03:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-09-21 12:03:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-09-21 12:03:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-09-21 12:03:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-09-21 12:03:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-09-21 12:03:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-09-21 12:03:02,975 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-09-21 12:03:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-09-21 12:03:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 12:03:02,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-09-21 12:03:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-09-21 12:03:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-21 12:03:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-21 12:03:02,981 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 12:03:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-09-21 12:03:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-09-21 12:03:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-09-21 12:03:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-21 12:03:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-09-21 12:03:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-09-21 12:03:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 12:03:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 12:03:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 12:03:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-21 12:03:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 12:03:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-21 12:03:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:03:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:03:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:03:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 12:03:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:03:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:03:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 12:03:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 12:03:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-21 12:03:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-09-21 12:03:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-09-21 12:03:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 12:03:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-21 12:03:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-21 12:03:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-21 12:03:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-09-21 12:03:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-09-21 12:03:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-09-21 12:03:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-09-21 12:03:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-09-21 12:03:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:03:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-09-21 12:03:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-09-21 12:03:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-09-21 12:03:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-09-21 12:03:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-09-21 12:03:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-09-21 12:03:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-21 12:03:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 12:03:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-21 12:03:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-21 12:03:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-21 12:03:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:03:03,757 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 12:03:05,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:03:05,516 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:03:05,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:03:05 BoogieIcfgContainer [2020-09-21 12:03:05,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:03:05,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:03:05,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:03:05,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:03:05,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:03:00" (1/3) ... [2020-09-21 12:03:05,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20de68c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:03:05, skipping insertion in model container [2020-09-21 12:03:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:02" (2/3) ... [2020-09-21 12:03:05,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20de68c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:03:05, skipping insertion in model container [2020-09-21 12:03:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:03:05" (3/3) ... [2020-09-21 12:03:05,536 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 12:03:05,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:03:05,558 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:03:05,581 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:03:05,614 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:03:05,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:03:05,615 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:03:05,615 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:03:05,615 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:03:05,615 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:03:05,615 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:03:05,616 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:03:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-09-21 12:03:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 12:03:05,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:05,665 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 12:03:05,666 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:05,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:05,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-09-21 12:03:05,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:05,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372247745] [2020-09-21 12:03:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:06,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:06,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:06,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:06,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 12:03:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:03:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 12:03:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:03:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:06,912 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:06,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:06,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:06,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:06,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:06,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:06,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:03:06,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:06,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:06,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:03:07,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:07,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:07,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:07,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:07,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:07,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:07,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:07,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:07,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:07,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:07,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:07,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:07,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:07,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:07,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:07,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:07,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:07,111 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 12:03:07,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372247745] [2020-09-21 12:03:07,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:03:07,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:03:07,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601815400] [2020-09-21 12:03:07,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:03:07,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:07,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:03:07,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:03:07,146 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-09-21 12:03:07,931 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 12:03:15,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:15,839 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-09-21 12:03:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:03:15,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-21 12:03:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:15,870 INFO L225 Difference]: With dead ends: 1648 [2020-09-21 12:03:15,870 INFO L226 Difference]: Without dead ends: 834 [2020-09-21 12:03:15,881 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 12:03:15,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-09-21 12:03:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-09-21 12:03:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-09-21 12:03:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-09-21 12:03:16,091 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-09-21 12:03:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:16,092 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-09-21 12:03:16,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:03:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-09-21 12:03:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:03:16,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:16,095 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 12:03:16,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:03:16,096 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-09-21 12:03:16,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:16,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030477594] [2020-09-21 12:03:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 12:03:16,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:03:16,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 12:03:16,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:16,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,758 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:16,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:16,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:16,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:16,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:16,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:16,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:16,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:16,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:03:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:03:16,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:03:16,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:03:16,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:03:16,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:16,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:03:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:16,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:16,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:16,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:16,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:16,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:16,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:16,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:16,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:16,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:17,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:03:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:17,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:17,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:17,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:17,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:17,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:17,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:17,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:17,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:17,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:17,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:17,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:17,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:17,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:17,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:17,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:17,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:17,053 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 12:03:17,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030477594] [2020-09-21 12:03:17,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:03:17,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:03:17,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539696451] [2020-09-21 12:03:17,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:03:17,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:03:17,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:03:17,057 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-09-21 12:03:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:23,533 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-09-21 12:03:23,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:03:23,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 12:03:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:23,547 INFO L225 Difference]: With dead ends: 1640 [2020-09-21 12:03:23,547 INFO L226 Difference]: Without dead ends: 864 [2020-09-21 12:03:23,552 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 12:03:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-09-21 12:03:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-09-21 12:03:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-09-21 12:03:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-09-21 12:03:23,757 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-09-21 12:03:23,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:23,758 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-09-21 12:03:23,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:03:23,758 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-09-21 12:03:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:03:23,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:23,761 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 12:03:23,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:03:23,762 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:23,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:23,762 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-09-21 12:03:23,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:23,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521675124] [2020-09-21 12:03:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:23,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:23,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:23,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:23,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:03:23,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:03:23,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:03:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 12:03:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:03:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:24,363 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:24,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:24,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:24,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:24,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:03:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:03:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:03:24,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:03:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:03:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:03:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:03:24,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:03:24,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:03:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:03:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:03:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:24,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:03:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:03:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:24,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:24,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:03:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:24,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:24,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:24,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:24,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:24,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:24,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:24,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:03:24,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:24,749 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 12:03:24,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521675124] [2020-09-21 12:03:24,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:03:24,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:03:24,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476406279] [2020-09-21 12:03:24,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:03:24,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:03:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:03:24,752 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-09-21 12:03:32,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:32,799 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-09-21 12:03:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:03:32,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-21 12:03:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:32,808 INFO L225 Difference]: With dead ends: 1674 [2020-09-21 12:03:32,808 INFO L226 Difference]: Without dead ends: 894 [2020-09-21 12:03:32,811 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 12:03:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-21 12:03:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-09-21 12:03:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-09-21 12:03:32,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-09-21 12:03:32,941 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-09-21 12:03:32,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:32,941 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-09-21 12:03:32,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:03:32,941 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-09-21 12:03:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 12:03:32,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:32,945 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 12:03:32,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:03:32,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-09-21 12:03:32,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:32,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601454604] [2020-09-21 12:03:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 12:03:33,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:03:33,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:03:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 12:03:33,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:03:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:03:33,604 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:33,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:33,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:33,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:33,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:03:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:03:33,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:03:33,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:03:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:03:33,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:03:33,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:03:33,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:03:33,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:33,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:03:33,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 12:03:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:33,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:33,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:03:33,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:03:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:33,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:03:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:33,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:33,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:33,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:33,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:33,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:33,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:33,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:33,963 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 12:03:33,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601454604] [2020-09-21 12:03:33,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:03:33,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:03:33,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033646898] [2020-09-21 12:03:33,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:03:33,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:33,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:03:33,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:03:33,966 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-09-21 12:03:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:43,553 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-09-21 12:03:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:03:43,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-21 12:03:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:43,562 INFO L225 Difference]: With dead ends: 1734 [2020-09-21 12:03:43,562 INFO L226 Difference]: Without dead ends: 924 [2020-09-21 12:03:43,565 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 [2020-09-21 12:03:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-09-21 12:03:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-09-21 12:03:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-09-21 12:03:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-09-21 12:03:43,675 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-09-21 12:03:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:43,675 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-09-21 12:03:43,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:03:43,675 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-09-21 12:03:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-21 12:03:43,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:43,677 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 12:03:43,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:03:43,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:43,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:43,678 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-09-21 12:03:43,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:43,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335209527] [2020-09-21 12:03:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:43,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:43,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:43,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:43,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:43,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:03:43,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:03:43,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:03:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 12:03:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:03:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:44,335 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:44,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:44,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:44,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:03:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:03:44,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:03:44,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:03:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:03:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:44,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:03:44,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:03:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:03:44,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 12:03:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:44,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 12:03:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:03:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:44,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:44,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:44,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:44,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:44,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:44,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:44,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:44,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:44,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:44,738 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 12:03:44,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335209527] [2020-09-21 12:03:44,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:03:44,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:03:44,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166973379] [2020-09-21 12:03:44,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:03:44,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:44,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:03:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:03:44,743 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-09-21 12:03:51,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:51,990 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-09-21 12:03:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:03:51,992 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-21 12:03:51,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:51,998 INFO L225 Difference]: With dead ends: 1794 [2020-09-21 12:03:51,998 INFO L226 Difference]: Without dead ends: 954 [2020-09-21 12:03:52,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:03:52,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-09-21 12:03:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-09-21 12:03:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-09-21 12:03:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-09-21 12:03:52,145 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-09-21 12:03:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:52,146 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-09-21 12:03:52,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:03:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-09-21 12:03:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 12:03:52,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:52,148 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 12:03:52,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:03:52,148 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:52,149 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-09-21 12:03:52,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:52,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406997616] [2020-09-21 12:03:52,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:52,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:52,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:52,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:52,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:52,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 12:03:52,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:52,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 12:03:52,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:03:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 12:03:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:03:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:52,794 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 12:03:52,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:52,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:52,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:52,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:52,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:52,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:52,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:03:52,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:52,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:52,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:52,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:52,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:52,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:52,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:52,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:52,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:52,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:03:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:52,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:52,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:52,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:52,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:52,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:52,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:52,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:03:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:53,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:53,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:53,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:53,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:53,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:03:53,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:03:53,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:03:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:03:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:53,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:53,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:53,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:53,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:53,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:53,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:03:53,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 12:03:53,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:03:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:03:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:53,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 12:03:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:53,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:53,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:53,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:53,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:53,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:03:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:53,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:53,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:53,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:53,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:03:53,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:03:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:53,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:53,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:53,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:53,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:53,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:53,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:53,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:53,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:53,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:53,229 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 12:03:53,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406997616] [2020-09-21 12:03:53,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:03:53,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 12:03:53,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267281101] [2020-09-21 12:03:53,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 12:03:53,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 12:03:53,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:03:53,231 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.