/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 12:10:26,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 12:10:26,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 12:10:26,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 12:10:26,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 12:10:26,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 12:10:26,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 12:10:26,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 12:10:26,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 12:10:26,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 12:10:26,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 12:10:26,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 12:10:26,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 12:10:26,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 12:10:26,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 12:10:26,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 12:10:26,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 12:10:26,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 12:10:26,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 12:10:26,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 12:10:26,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 12:10:26,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 12:10:26,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 12:10:26,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 12:10:26,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 12:10:26,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 12:10:26,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 12:10:26,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 12:10:26,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 12:10:26,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 12:10:26,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 12:10:26,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 12:10:26,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 12:10:26,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 12:10:26,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 12:10:26,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 12:10:26,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 12:10:26,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 12:10:26,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 12:10:26,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 12:10:26,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 12:10:26,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 12:10:26,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 12:10:26,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 12:10:26,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 12:10:26,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 12:10:26,305 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 12:10:26,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 12:10:26,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 12:10:26,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 12:10:26,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 12:10:26,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 12:10:26,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 12:10:26,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 12:10:26,308 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 12:10:26,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 12:10:26,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 12:10:26,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 12:10:26,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 12:10:26,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 12:10:26,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 12:10:26,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 12:10:26,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 12:10:26,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 12:10:26,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 12:10:26,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 12:10:26,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 12:10:26,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 12:10:26,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 12:10:26,311 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 12:10:26,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 12:10:26,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 12:10:26,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 12:10:26,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 12:10:26,814 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 12:10:26,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-27 12:10:26,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38cad18e6/9fb424bbaca34f2c81608a834f53cd60/FLAG67c5144c7 [2020-10-27 12:10:27,860 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 12:10:27,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-27 12:10:27,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38cad18e6/9fb424bbaca34f2c81608a834f53cd60/FLAG67c5144c7 [2020-10-27 12:10:27,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38cad18e6/9fb424bbaca34f2c81608a834f53cd60 [2020-10-27 12:10:27,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 12:10:27,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 12:10:27,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 12:10:27,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 12:10:27,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 12:10:27,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:10:27" (1/1) ... [2020-10-27 12:10:28,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6710d9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:28, skipping insertion in model container [2020-10-27 12:10:28,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:10:27" (1/1) ... [2020-10-27 12:10:28,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 12:10:28,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 12:10:28,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 12:10:28,889 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 12:10:29,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 12:10:29,200 INFO L208 MainTranslator]: Completed translation [2020-10-27 12:10:29,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29 WrapperNode [2020-10-27 12:10:29,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 12:10:29,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 12:10:29,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 12:10:29,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 12:10:29,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... [2020-10-27 12:10:29,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 12:10:29,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 12:10:29,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 12:10:29,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 12:10:29,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 12:10:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 12:10:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 12:10:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-27 12:10:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 12:10:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 12:10:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 12:10:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-27 12:10:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 12:10:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 12:10:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 12:10:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-27 12:10:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-27 12:10:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 12:10:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 12:10:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 12:10:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-27 12:10:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-27 12:10:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-27 12:10:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-27 12:10:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-27 12:10:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_put [2020-10-27 12:10:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_set_drvdata [2020-10-27 12:10:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_get_drvdata [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_poll [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_probe [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_remove [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_driver_init [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_driver_exit [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-27 12:10:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_probe_2 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 12:10:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_5 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_6 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_7 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_8 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_9 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_10 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_11 [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 12:10:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-10-27 12:10:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_alloc [2020-10-27 12:10:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_poll [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_register [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_unregister [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-27 12:10:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2020-10-27 12:10:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-27 12:10:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 12:10:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 12:10:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 12:10:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 12:10:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 12:10:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_6 [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_5 [2020-10-27 12:10:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 12:10:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 12:10:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 12:10:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_probe_2 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-27 12:10:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2020-10-27 12:10:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_10 [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_11 [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-27 12:10:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_7 [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_8 [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_9 [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_put [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_set_drvdata [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_get_drvdata [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_register [2020-10-27 12:10:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_unregister [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_poll [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_alloc [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_poll [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_probe [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 12:10:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_remove [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_driver_init [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_driver_exit [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-27 12:10:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-10-27 12:10:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 12:10:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 12:10:30,310 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 12:10:30,326 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-10-27 12:10:30,748 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 12:10:30,748 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 12:10:30,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:10:30 BoogieIcfgContainer [2020-10-27 12:10:30,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 12:10:30,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 12:10:30,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 12:10:30,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 12:10:30,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:10:27" (1/3) ... [2020-10-27 12:10:30,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe3d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:10:30, skipping insertion in model container [2020-10-27 12:10:30,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:10:29" (2/3) ... [2020-10-27 12:10:30,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe3d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:10:30, skipping insertion in model container [2020-10-27 12:10:30,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:10:30" (3/3) ... [2020-10-27 12:10:30,762 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-27 12:10:30,778 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 12:10:30,785 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 12:10:30,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 12:10:30,837 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 12:10:30,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 12:10:30,837 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 12:10:30,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 12:10:30,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 12:10:30,837 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 12:10:30,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 12:10:30,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 12:10:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states. [2020-10-27 12:10:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-27 12:10:30,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:10:30,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:10:30,881 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:10:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:10:30,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1338641539, now seen corresponding path program 1 times [2020-10-27 12:10:30,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:10:30,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28615364] [2020-10-27 12:10:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:10:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 12:10:32,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 12:10:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-27 12:10:32,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 12:10:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 12:10:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 12:10:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 12:10:32,553 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 12:10:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:10:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:32,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 12:10:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:10:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 12:10:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:10:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:10:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 12:10:32,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:10:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 12:10:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:32,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 12:10:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:32,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 12:10:32,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 12:10:32,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:10:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 12:10:32,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:10:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 12:10:32,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:32,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 12:10:32,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:32,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:32,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:32,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:32,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:32,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:10:32,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 12:10:32,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28615364] [2020-10-27 12:10:32,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 12:10:32,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 12:10:32,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098569323] [2020-10-27 12:10:32,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 12:10:32,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:10:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 12:10:32,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 12:10:32,889 INFO L87 Difference]: Start difference. First operand 337 states. Second operand 5 states. [2020-10-27 12:10:33,132 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 12:10:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:10:35,268 INFO L93 Difference]: Finished difference Result 679 states and 854 transitions. [2020-10-27 12:10:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 12:10:35,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-10-27 12:10:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:10:35,288 INFO L225 Difference]: With dead ends: 679 [2020-10-27 12:10:35,289 INFO L226 Difference]: Without dead ends: 342 [2020-10-27 12:10:35,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 12:10:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-27 12:10:35,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 285. [2020-10-27 12:10:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-27 12:10:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2020-10-27 12:10:35,428 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 35 [2020-10-27 12:10:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:10:35,428 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2020-10-27 12:10:35,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 12:10:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2020-10-27 12:10:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 12:10:35,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:10:35,434 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:10:35,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 12:10:35,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:10:35,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:10:35,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1919278916, now seen corresponding path program 1 times [2020-10-27 12:10:35,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:10:35,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057250758] [2020-10-27 12:10:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:10:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:35,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1773 [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 12:10:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 12:10:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,542 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 12:10:37,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:10:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:37,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 12:10:37,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:10:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:10:37,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:10:37,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 12:10:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 12:10:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:10:37,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 12:10:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 12:10:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:10:37,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:10:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 12:10:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 12:10:37,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 12:10:37,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 12:10:37,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:10:37,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 12:10:37,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:10:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 12:10:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 12:10:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:37,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:37,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:37,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:10:37,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 12:10:37,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 12:10:37,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057250758] [2020-10-27 12:10:37,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 12:10:37,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 12:10:37,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84086448] [2020-10-27 12:10:37,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 12:10:37,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:10:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 12:10:37,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 12:10:37,860 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand 5 states. [2020-10-27 12:10:38,080 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 12:10:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:10:40,848 INFO L93 Difference]: Finished difference Result 728 states and 909 transitions. [2020-10-27 12:10:40,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 12:10:40,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-10-27 12:10:40,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:10:40,855 INFO L225 Difference]: With dead ends: 728 [2020-10-27 12:10:40,855 INFO L226 Difference]: Without dead ends: 453 [2020-10-27 12:10:40,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 12:10:40,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-27 12:10:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 344. [2020-10-27 12:10:40,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-27 12:10:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2020-10-27 12:10:40,947 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 66 [2020-10-27 12:10:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:10:40,947 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2020-10-27 12:10:40,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 12:10:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2020-10-27 12:10:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 12:10:40,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:10:40,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:10:40,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 12:10:40,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:10:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:10:40,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1918037054, now seen corresponding path program 1 times [2020-10-27 12:10:40,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:10:40,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182834689] [2020-10-27 12:10:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:10:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:41,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:41,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-27 12:10:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 908 [2020-10-27 12:10:41,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 12:10:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 12:10:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 12:10:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,302 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 12:10:42,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 12:10:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:42,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 12:10:42,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:10:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 12:10:42,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 12:10:42,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 12:10:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 12:10:42,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 12:10:42,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 12:10:42,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:42,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 12:10:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:10:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 12:10:42,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 12:10:42,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:10:42,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 12:10:42,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:10:42,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 12:10:42,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 12:10:42,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 12:10:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 12:10:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:10:42,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:10:42,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 12:10:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:10:42,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 12:10:42,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 12:10:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 12:10:42,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:10:42,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 12:10:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 12:10:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 12:10:42,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 12:10:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 12:10:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 12:10:42,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 12:10:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 12:10:42,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 12:10:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 12:10:42,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 12:10:42,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 12:10:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 12:10:42,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 12:10:42,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 12:10:42,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 12:10:42,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 12:10:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 12:10:42,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 12:10:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 12:10:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 12:10:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 12:10:42,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 12:10:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 12:10:43,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182834689] [2020-10-27 12:10:43,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 12:10:43,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 12:10:43,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758025200] [2020-10-27 12:10:43,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 12:10:43,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 12:10:43,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 12:10:43,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-27 12:10:43,036 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 13 states. [2020-10-27 12:10:43,272 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 12:10:44,361 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-27 12:10:44,612 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-27 12:10:44,857 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-27 12:10:45,112 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 12:10:45,373 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 12:10:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 12:10:47,113 INFO L93 Difference]: Finished difference Result 753 states and 927 transitions. [2020-10-27 12:10:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 12:10:47,114 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 111 [2020-10-27 12:10:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 12:10:47,119 INFO L225 Difference]: With dead ends: 753 [2020-10-27 12:10:47,120 INFO L226 Difference]: Without dead ends: 419 [2020-10-27 12:10:47,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-27 12:10:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-27 12:10:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 351. [2020-10-27 12:10:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-27 12:10:47,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 426 transitions. [2020-10-27 12:10:47,187 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 426 transitions. Word has length 111 [2020-10-27 12:10:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 12:10:47,188 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 426 transitions. [2020-10-27 12:10:47,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 12:10:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 426 transitions. [2020-10-27 12:10:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 12:10:47,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 12:10:47,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 12:10:47,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 12:10:47,192 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 12:10:47,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 12:10:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash 9710150, now seen corresponding path program 1 times [2020-10-27 12:10:47,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 12:10:47,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311811771] [2020-10-27 12:10:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 12:10:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 12:10:47,270 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 12:10:47,270 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 12:10:47,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 12:10:47,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:10:47 BoogieIcfgContainer [2020-10-27 12:10:47,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 12:10:47,307 INFO L168 Benchmark]: Toolchain (without parser) took 19323.95 ms. Allocated memory was 173.0 MB in the beginning and 394.3 MB in the end (delta: 221.2 MB). Free memory was 144.8 MB in the beginning and 193.4 MB in the end (delta: -48.5 MB). Peak memory consumption was 173.8 MB. Max. memory is 8.0 GB. [2020-10-27 12:10:47,308 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 84.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 12:10:47,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1208.29 ms. Allocated memory is still 173.0 MB. Free memory was 144.2 MB in the beginning and 130.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB. [2020-10-27 12:10:47,310 INFO L168 Benchmark]: Boogie Preprocessor took 179.74 ms. Allocated memory is still 173.0 MB. Free memory was 130.0 MB in the beginning and 124.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 12:10:47,311 INFO L168 Benchmark]: RCFGBuilder took 1367.47 ms. Allocated memory is still 173.0 MB. Free memory was 124.3 MB in the beginning and 102.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 8.0 GB. [2020-10-27 12:10:47,311 INFO L168 Benchmark]: TraceAbstraction took 16551.44 ms. Allocated memory was 173.0 MB in the beginning and 394.3 MB in the end (delta: 221.2 MB). Free memory was 102.2 MB in the beginning and 193.4 MB in the end (delta: -91.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 8.0 GB. [2020-10-27 12:10:47,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 84.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1208.29 ms. Allocated memory is still 173.0 MB. Free memory was 144.2 MB in the beginning and 130.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 179.74 ms. Allocated memory is still 173.0 MB. Free memory was 130.0 MB in the beginning and 124.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1367.47 ms. Allocated memory is still 173.0 MB. Free memory was 124.3 MB in the beginning and 102.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16551.44 ms. Allocated memory was 173.0 MB in the beginning and 394.3 MB in the end (delta: 221.2 MB). Free memory was 102.2 MB in the beginning and 193.4 MB in the end (delta: -91.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 2959, overapproximation of bitwiseOr at line 2678. Possible FailurePath: [L2766] int ldv_irq_1_2 = 0; [L2767] int LDV_IN_INTERRUPT = 1; [L2768] int ldv_irq_1_3 = 0; [L2769] void *ldv_irq_data_1_1 ; [L2770] int ldv_irq_1_1 = 0; [L2771] int ldv_irq_1_0 = 0; [L2772] int probed_2 = 0; [L2773] int ldv_irq_line_1_3 ; [L2774] void *ldv_irq_data_1_0 ; [L2775] int ldv_state_variable_0 ; [L2776] int ldv_irq_line_1_0 ; [L2777] int ldv_state_variable_2 ; [L2778] void *ldv_irq_data_1_3 ; [L2779] int ref_cnt ; [L2780] int ldv_irq_line_1_1 ; [L2781] struct platform_device *iio_interrupt_trigger_driver_group1 ; [L2782] void *ldv_irq_data_1_2 ; [L2783] int ldv_state_variable_1 ; [L2784] int ldv_irq_line_1_2 ; [L2881] static struct iio_trigger_ops const iio_interrupt_trigger_ops = {& __this_module, 0, 0, 0}; [L2958-L2968] static struct platform_driver iio_interrupt_trigger_driver = {& iio_interrupt_trigger_probe, & iio_interrupt_trigger_remove, 0, 0, 0, {"iio_interrupt_trigger", 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0, (_Bool)0}; [L2984] int ldv_retval_0 ; [L2985] int ldv_retval_1 ; [L2988] int ldv_retval_2 ; [L3356] int ldv_module_refcounter = 1; [L3137] int tmp ; [L3138] int tmp___0 ; [L3139] int tmp___1 ; [L3141] FCALL ldv_initialize() [L3142] ldv_state_variable_1 = 1 [L3143] ref_cnt = 0 [L3144] ldv_state_variable_0 = 1 [L3145] ldv_state_variable_2 = 0 [L3147] tmp = __VERIFIER_nondet_int() [L3149] case 0: [L3155] case 1: [L3156] COND TRUE ldv_state_variable_0 != 0 [L3157] tmp___0 = __VERIFIER_nondet_int() [L3159] case 0: [L3167] case 1: [L3168] COND TRUE ldv_state_variable_0 == 1 [L3169] CALL, EXPR iio_interrupt_trigger_driver_init() [L2971] int tmp ; [L2973] CALL, EXPR ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L3294] ldv_func_ret_type___0 ldv_func_res ; [L3295] int tmp ; [L3297] CALL, EXPR __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3424] return __VERIFIER_nondet_int(); [L3297] RET, EXPR __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3297] tmp = __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3298] ldv_func_res = tmp [L3299] ldv_state_variable_2 = 1 [L3300] CALL ldv_platform_driver_init_2() [L3102] void *tmp ; [L3104] CALL, EXPR ldv_init_zalloc(1472UL) [L2726] void *p ; [L2727] void *tmp ; [L2729] EXPR, FCALL calloc(1UL, size) [L2729] tmp = calloc(1UL, size) [L2730] p = tmp [L2731] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2688] COND FALSE !(!cond) [L2731] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2732] return (p); [L3104] RET, EXPR ldv_init_zalloc(1472UL) [L3104] tmp = ldv_init_zalloc(1472UL) [L3105] iio_interrupt_trigger_driver_group1 = (struct platform_device *)tmp [L3300] RET ldv_platform_driver_init_2() [L3301] return (ldv_func_res); [L2973] RET, EXPR ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L2973] tmp = ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L2974] return (tmp); [L3169] RET, EXPR iio_interrupt_trigger_driver_init() [L3169] ldv_retval_0 = iio_interrupt_trigger_driver_init() [L3170] COND TRUE ldv_retval_0 == 0 [L3171] ldv_state_variable_0 = 3 [L3174] COND FALSE !(ldv_retval_0 != 0) [L3147] tmp = __VERIFIER_nondet_int() [L3149] case 0: [L3155] case 1: [L3189] case 2: [L3190] COND TRUE ldv_state_variable_2 != 0 [L3191] tmp___1 = __VERIFIER_nondet_int() [L3193] case 0: [L3194] COND TRUE ldv_state_variable_2 == 1 [L3195] CALL iio_interrupt_trigger_probe(iio_interrupt_trigger_driver_group1) [L2884] struct iio_interrupt_trigger_info *trig_info ; [L2885] struct iio_trigger *trig ; [L2886] unsigned long irqflags ; [L2887] struct resource *irq_res ; [L2888] int irq ; [L2889] int ret ; [L2890] void *tmp ; [L2892] ret = 0 [L2893] CALL, EXPR platform_get_resource(pdev, 1024U, 0U) [L3452] CALL, EXPR ldv_malloc(sizeof(struct resource)) [L2692] void *p ; [L2693] void *tmp ; [L2694] int tmp___0 ; [L2696] tmp___0 = __VERIFIER_nondet_int() [L2697] COND FALSE !(tmp___0 != 0) [L2700] tmp = malloc(size) [L2701] p = tmp [L2702] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2688] COND FALSE !(!cond) [L2702] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2703] return (p); [L3452] RET, EXPR ldv_malloc(sizeof(struct resource)) [L3452] return ldv_malloc(sizeof(struct resource)); [L2893] RET, EXPR platform_get_resource(pdev, 1024U, 0U) [L2893] irq_res = platform_get_resource(pdev, 1024U, 0U) [L2894] COND FALSE !((unsigned long )irq_res == (unsigned long )((struct resource *)0)) [L2898] EXPR irq_res->flags [L2898] irqflags = (irq_res->flags & 15UL) | 128UL [L2899] EXPR irq_res->start [L2899] irq = (int )irq_res->start [L2900] trig = iio_trigger_alloc("irqtrig%d", irq) [L2901] COND FALSE !((unsigned long )trig == (unsigned long )((struct iio_trigger *)0)) [L2906] CALL, EXPR kzalloc(4UL, 208U) [L2676] void *tmp ; [L2678] CALL, EXPR kmalloc(size, flags | 32768U) [L2667] void *tmp___2 ; [L2669] CALL, EXPR __kmalloc(size, flags) [L2662] CALL, EXPR ldv_malloc(size) [L2692] void *p ; [L2693] void *tmp ; [L2694] int tmp___0 ; [L2696] tmp___0 = __VERIFIER_nondet_int() [L2697] COND TRUE tmp___0 != 0 [L2698] return ((void *)0); [L2662] RET, EXPR ldv_malloc(size) [L2662] return ldv_malloc(size); [L2669] RET, EXPR __kmalloc(size, flags) [L2669] tmp___2 = __kmalloc(size, flags) [L2670] return (tmp___2); [L2678] RET, EXPR kmalloc(size, flags | 32768U) [L2678] tmp = kmalloc(size, flags | 32768U) [L2679] return (tmp); [L2906] RET, EXPR kzalloc(4UL, 208U) [L2906] tmp = kzalloc(4UL, 208U) [L2907] trig_info = (struct iio_interrupt_trigger_info *)tmp [L2908] COND TRUE (unsigned long )trig_info == (unsigned long )((struct iio_interrupt_trigger_info *)0) [L2909] ret = -12 [L2935] CALL iio_trigger_put(trig) [L2850] EXPR trig->ops [L2850] EXPR (trig->ops)->owner [L2850] CALL ldv_module_put_5((trig->ops)->owner) [L3247] CALL ldv_module_put(ldv_func_arg1) [L3387] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L3388] COND TRUE ldv_module_refcounter <= 1 [L3389] CALL ldv_error() [L3317] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 69 procedures, 404 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 906 SDtfs, 1364 SDslu, 1216 SDs, 0 SdLazy, 2127 SolverSat, 772 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=351occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 234 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 68177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 9/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...