/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-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 0.1.25-adbd35c [2020-10-13 21:21:28,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 21:21:28,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 21:21:28,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 21:21:28,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 21:21:28,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 21:21:28,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 21:21:28,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 21:21:28,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 21:21:28,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 21:21:28,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 21:21:28,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 21:21:28,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 21:21:28,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 21:21:28,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 21:21:28,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 21:21:28,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 21:21:28,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 21:21:28,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 21:21:28,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 21:21:28,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 21:21:28,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 21:21:28,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 21:21:28,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 21:21:28,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 21:21:28,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 21:21:28,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 21:21:28,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 21:21:28,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 21:21:28,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 21:21:28,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 21:21:28,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 21:21:28,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 21:21:28,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 21:21:28,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 21:21:28,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 21:21:28,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 21:21:28,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 21:21:28,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 21:21:28,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 21:21:28,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 21:21:28,660 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 [2020-10-13 21:21:28,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 21:21:28,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 21:21:28,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 21:21:28,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 21:21:28,698 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 21:21:28,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 21:21:28,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 21:21:28,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 21:21:28,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 21:21:28,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 21:21:28,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 21:21:28,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 21:21:28,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 21:21:28,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 21:21:28,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 21:21:28,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 21:21:28,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 21:21:28,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 21:21:28,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 21:21:28,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 21:21:28,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 21:21:28,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 21:21:28,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 21:21:28,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 21:21:28,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 21:21:28,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 21:21:28,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 21:21:28,704 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 21:21:28,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 21:21:29,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 21:21:29,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 21:21:29,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 21:21:29,008 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 21:21:29,009 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-13 21:21:29,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8477fe4bd/1918b80b023543cdb781493e0b65b15a/FLAG096afa16d [2020-10-13 21:21:29,809 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 21:21:29,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-13 21:21:29,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8477fe4bd/1918b80b023543cdb781493e0b65b15a/FLAG096afa16d [2020-10-13 21:21:29,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8477fe4bd/1918b80b023543cdb781493e0b65b15a [2020-10-13 21:21:29,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 21:21:29,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 21:21:29,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 21:21:29,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 21:21:29,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 21:21:29,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:29" (1/1) ... [2020-10-13 21:21:29,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5e3f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:29, skipping insertion in model container [2020-10-13 21:21:29,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:29" (1/1) ... [2020-10-13 21:21:29,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 21:21:30,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 21:21:30,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 21:21:30,792 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 21:21:30,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 21:21:31,056 INFO L208 MainTranslator]: Completed translation [2020-10-13 21:21:31,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31 WrapperNode [2020-10-13 21:21:31,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 21:21:31,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 21:21:31,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 21:21:31,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 21:21:31,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (1/1) ... [2020-10-13 21:21:31,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 21:21:31,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 21:21:31,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 21:21:31,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 21:21:31,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (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 [2020-10-13 21:21:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 21:21:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 21:21:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-13 21:21:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 21:21:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 21:21:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 21:21:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 21:21:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 21:21:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 21:21:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-13 21:21:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-13 21:21:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 21:21:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 21:21:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 21:21:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 21:21:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 21:21:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-13 21:21:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-13 21:21:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 21:21:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_put [2020-10-13 21:21:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_set_drvdata [2020-10-13 21:21:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_get_drvdata [2020-10-13 21:21:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_poll [2020-10-13 21:21:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_probe [2020-10-13 21:21:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_remove [2020-10-13 21:21:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_driver_init [2020-10-13 21:21:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_driver_exit [2020-10-13 21:21:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 21:21:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 21:21:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 21:21:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 21:21:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_probe_2 [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_5 [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_6 [2020-10-13 21:21:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_7 [2020-10-13 21:21:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_8 [2020-10-13 21:21:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_9 [2020-10-13 21:21:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_10 [2020-10-13 21:21:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_11 [2020-10-13 21:21:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-10-13 21:21:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-10-13 21:21:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-10-13 21:21:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-10-13 21:21:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-10-13 21:21:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 21:21:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2020-10-13 21:21:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 21:21:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_alloc [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_poll [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_register [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_unregister [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 21:21:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-13 21:21:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-13 21:21:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2020-10-13 21:21:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 21:21:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 21:21:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 21:21:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 21:21:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 21:21:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 21:21:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_6 [2020-10-13 21:21:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_5 [2020-10-13 21:21:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-10-13 21:21:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 21:21:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 21:21:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 21:21:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 21:21:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 21:21:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 21:21:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 21:21:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 21:21:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 21:21:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 21:21:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 21:21:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 21:21:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 21:21:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 21:21:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_probe_2 [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 21:21:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 21:21:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 21:21:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2020-10-13 21:21:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 21:21:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-13 21:21:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2020-10-13 21:21:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_10 [2020-10-13 21:21:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-13 21:21:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_11 [2020-10-13 21:21:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-13 21:21:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-13 21:21:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 21:21:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 21:21:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_7 [2020-10-13 21:21:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 21:21:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_8 [2020-10-13 21:21:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_9 [2020-10-13 21:21:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_put [2020-10-13 21:21:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_set_drvdata [2020-10-13 21:21:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_get_drvdata [2020-10-13 21:21:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_register [2020-10-13 21:21:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_unregister [2020-10-13 21:21:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_poll [2020-10-13 21:21:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_alloc [2020-10-13 21:21:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_poll [2020-10-13 21:21:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_probe [2020-10-13 21:21:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 21:21:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 21:21:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 21:21:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_remove [2020-10-13 21:21:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_driver_init [2020-10-13 21:21:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_driver_exit [2020-10-13 21:21:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 21:21:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 21:21:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-13 21:21:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 21:21:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 21:21:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 21:21:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 21:21:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 21:21:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 21:21:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-10-13 21:21:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-10-13 21:21:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-10-13 21:21:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 21:21:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 21:21:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 21:21:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 21:21:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 21:21:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 21:21:31,991 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 21:21:32,005 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-10-13 21:21:32,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 21:21:32,334 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 21:21:32,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:32 BoogieIcfgContainer [2020-10-13 21:21:32,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 21:21:32,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 21:21:32,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 21:21:32,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 21:21:32,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:21:29" (1/3) ... [2020-10-13 21:21:32,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f1ab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:32, skipping insertion in model container [2020-10-13 21:21:32,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:31" (2/3) ... [2020-10-13 21:21:32,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f1ab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:32, skipping insertion in model container [2020-10-13 21:21:32,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:32" (3/3) ... [2020-10-13 21:21:32,347 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2020-10-13 21:21:32,357 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 21:21:32,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 21:21:32,381 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 21:21:32,411 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 21:21:32,412 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 21:21:32,412 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 21:21:32,412 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 21:21:32,412 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 21:21:32,412 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 21:21:32,412 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 21:21:32,412 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 21:21:32,437 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2020-10-13 21:21:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-13 21:21:32,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:32,449 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] [2020-10-13 21:21:32,450 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash -607093699, now seen corresponding path program 1 times [2020-10-13 21:21:32,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:32,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041022956] [2020-10-13 21:21:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:32,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:33,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:33,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:33,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 21:21:33,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 21:21:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-13 21:21:33,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 21:21:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 21:21:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 21:21:33,851 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 21:21:33,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:33,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:33,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:33,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:33,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:33,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 21:21:33,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:33,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:33,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:33,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:33,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 21:21:33,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:33,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:34,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 21:21:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:34,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 21:21:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 21:21:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 21:21:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:34,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:34,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 21:21:34,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 21:21:34,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:34,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:34,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:34,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:34,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 21:21:34,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 21:21:34,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041022956] [2020-10-13 21:21:34,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 21:21:34,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 21:21:34,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366450138] [2020-10-13 21:21:34,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 21:21:34,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 21:21:34,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 21:21:34,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 21:21:34,146 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 5 states. [2020-10-13 21:21:34,428 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 21:21:38,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 21:21:38,704 INFO L93 Difference]: Finished difference Result 995 states and 1274 transitions. [2020-10-13 21:21:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 21:21:38,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-13 21:21:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 21:21:38,730 INFO L225 Difference]: With dead ends: 995 [2020-10-13 21:21:38,731 INFO L226 Difference]: Without dead ends: 671 [2020-10-13 21:21:38,738 INFO L675 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 [2020-10-13 21:21:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2020-10-13 21:21:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 538. [2020-10-13 21:21:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-13 21:21:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 648 transitions. [2020-10-13 21:21:38,906 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 648 transitions. Word has length 33 [2020-10-13 21:21:38,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 21:21:38,907 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 648 transitions. [2020-10-13 21:21:38,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 21:21:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 648 transitions. [2020-10-13 21:21:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-13 21:21:38,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:38,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 21:21:38,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 21:21:38,913 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:38,914 INFO L82 PathProgramCache]: Analyzing trace with hash -803906483, now seen corresponding path program 1 times [2020-10-13 21:21:38,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:38,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891472479] [2020-10-13 21:21:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:39,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:39,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:39,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 21:21:39,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 21:21:39,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-13 21:21:39,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:39,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 21:21:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 21:21:39,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:39,902 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 21:21:39,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:39,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:39,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:39,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 21:21:39,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:39,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:39,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:39,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 21:21:39,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 21:21:39,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:39,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 21:21:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 21:21:40,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 21:21:40,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:40,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 21:21:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 21:21:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:40,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:40,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:40,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:40,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 21:21:40,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 21:21:40,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 21:21:40,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 21:21:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:40,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 21:21:40,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:40,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:40,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:40,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:40,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:40,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:40,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:40,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:40,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:40,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 21:21:40,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891472479] [2020-10-13 21:21:40,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 21:21:40,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 21:21:40,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416069093] [2020-10-13 21:21:40,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 21:21:40,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 21:21:40,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 21:21:40,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 21:21:40,431 INFO L87 Difference]: Start difference. First operand 538 states and 648 transitions. Second operand 8 states. [2020-10-13 21:21:40,597 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 21:21:40,858 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 21:21:41,530 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 21:21:43,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 21:21:43,531 INFO L93 Difference]: Finished difference Result 758 states and 972 transitions. [2020-10-13 21:21:43,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 21:21:43,533 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-13 21:21:43,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 21:21:43,547 INFO L225 Difference]: With dead ends: 758 [2020-10-13 21:21:43,547 INFO L226 Difference]: Without dead ends: 753 [2020-10-13 21:21:43,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-13 21:21:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-10-13 21:21:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 538. [2020-10-13 21:21:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-13 21:21:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 647 transitions. [2020-10-13 21:21:43,656 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 647 transitions. Word has length 59 [2020-10-13 21:21:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 21:21:43,657 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 647 transitions. [2020-10-13 21:21:43,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 21:21:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 647 transitions. [2020-10-13 21:21:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-13 21:21:43,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:43,661 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 21:21:43,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 21:21:43,661 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:43,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:43,661 INFO L82 PathProgramCache]: Analyzing trace with hash -746648181, now seen corresponding path program 1 times [2020-10-13 21:21:43,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:43,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80874831] [2020-10-13 21:21:43,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:43,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:43,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 21:21:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-13 21:21:43,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 21:21:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 21:21:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 21:21:43,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:44,213 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 21:21:44,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 21:21:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 21:21:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 21:21:44,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 21:21:44,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 21:21:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 21:21:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 21:21:44,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 21:21:44,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 21:21:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 21:21:44,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 21:21:44,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 21:21:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 21:21:44,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 21:21:44,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 21:21:44,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 21:21:44,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:44,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:44,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:44,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:44,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:44,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:44,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 21:21:44,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:44,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:44,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 21:21:44,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80874831] [2020-10-13 21:21:44,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 21:21:44,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 21:21:44,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472150309] [2020-10-13 21:21:44,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 21:21:44,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 21:21:44,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 21:21:44,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 21:21:44,781 INFO L87 Difference]: Start difference. First operand 538 states and 647 transitions. Second operand 8 states. [2020-10-13 21:21:44,987 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 21:21:45,200 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 21:21:45,825 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 21:21:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 21:21:47,559 INFO L93 Difference]: Finished difference Result 1251 states and 1589 transitions. [2020-10-13 21:21:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 21:21:47,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-13 21:21:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 21:21:47,569 INFO L225 Difference]: With dead ends: 1251 [2020-10-13 21:21:47,569 INFO L226 Difference]: Without dead ends: 708 [2020-10-13 21:21:47,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-13 21:21:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-13 21:21:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 519. [2020-10-13 21:21:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-10-13 21:21:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 624 transitions. [2020-10-13 21:21:47,679 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 624 transitions. Word has length 59 [2020-10-13 21:21:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 21:21:47,681 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 624 transitions. [2020-10-13 21:21:47,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 21:21:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 624 transitions. [2020-10-13 21:21:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 21:21:47,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:47,687 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] [2020-10-13 21:21:47,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 21:21:47,687 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:47,687 INFO L82 PathProgramCache]: Analyzing trace with hash 683097113, now seen corresponding path program 1 times [2020-10-13 21:21:47,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:47,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201500174] [2020-10-13 21:21:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:47,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:48,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:48,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 21:21:48,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 21:21:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1263 [2020-10-13 21:21:48,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 21:21:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 21:21:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 21:21:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:49,154 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 21:21:49,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:49,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 21:21:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 21:21:49,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 21:21:49,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:49,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 21:21:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 21:21:49,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 21:21:49,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 21:21:49,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:49,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:49,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 21:21:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 21:21:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 21:21:49,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 21:21:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 21:21:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 21:21:49,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:49,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 21:21:49,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 21:21:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 21:21:49,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:49,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:49,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:49,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:49,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:49,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 21:21:49,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:49,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:49,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 21:21:49,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201500174] [2020-10-13 21:21:49,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 21:21:49,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 21:21:49,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190246762] [2020-10-13 21:21:49,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 21:21:49,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 21:21:49,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 21:21:49,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 21:21:49,437 INFO L87 Difference]: Start difference. First operand 519 states and 624 transitions. Second operand 5 states. [2020-10-13 21:21:49,609 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 21:21:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 21:21:51,968 INFO L93 Difference]: Finished difference Result 1310 states and 1636 transitions. [2020-10-13 21:21:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 21:21:51,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-13 21:21:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 21:21:51,974 INFO L225 Difference]: With dead ends: 1310 [2020-10-13 21:21:51,975 INFO L226 Difference]: Without dead ends: 801 [2020-10-13 21:21:51,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 21:21:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2020-10-13 21:21:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 571. [2020-10-13 21:21:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-13 21:21:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 694 transitions. [2020-10-13 21:21:52,060 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 694 transitions. Word has length 64 [2020-10-13 21:21:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 21:21:52,060 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 694 transitions. [2020-10-13 21:21:52,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 21:21:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 694 transitions. [2020-10-13 21:21:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 21:21:52,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:52,066 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] [2020-10-13 21:21:52,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 21:21:52,067 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:52,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:52,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1496753609, now seen corresponding path program 1 times [2020-10-13 21:21:52,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:52,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240082012] [2020-10-13 21:21:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:52,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:52,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:52,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 21:21:52,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-10-13 21:21:52,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 21:21:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 21:21:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 21:21:52,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,068 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 21:21:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 21:21:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:53,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 21:21:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 21:21:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 21:21:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 21:21:53,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 21:21:53,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 21:21:53,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 21:21:53,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:53,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 21:21:53,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 21:21:53,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 21:21:53,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 21:21:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 21:21:53,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:53,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 21:21:53,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 21:21:53,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:53,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 21:21:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:53,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 21:21:53,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 21:21:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 21:21:53,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 21:21:53,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 21:21:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 21:21:53,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 21:21:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 21:21:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 21:21:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 21:21:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 21:21:53,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 21:21:53,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 21:21:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 21:21:53,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 21:21:53,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 21:21:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 21:21:53,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 21:21:53,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:53,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 21:21:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 21:21:53,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 21:21:53,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 21:21:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 21:21:53,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 21:21:53,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 21:21:53,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 21:21:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 21:21:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 21:21:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 21:21:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 21:21:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 21:21:53,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240082012] [2020-10-13 21:21:53,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 21:21:53,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 21:21:53,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755558839] [2020-10-13 21:21:53,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 21:21:53,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 21:21:53,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 21:21:53,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 21:21:53,855 INFO L87 Difference]: Start difference. First operand 571 states and 694 transitions. Second operand 13 states. [2020-10-13 21:21:54,005 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 21:21:54,936 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 21:21:55,131 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 21:21:55,309 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 21:21:55,528 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 21:21:55,737 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 21:21:57,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 21:21:57,341 INFO L93 Difference]: Finished difference Result 1243 states and 1521 transitions. [2020-10-13 21:21:57,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 21:21:57,342 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-13 21:21:57,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 21:21:57,348 INFO L225 Difference]: With dead ends: 1243 [2020-10-13 21:21:57,348 INFO L226 Difference]: Without dead ends: 682 [2020-10-13 21:21:57,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-13 21:21:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-10-13 21:21:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 585. [2020-10-13 21:21:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 21:21:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 710 transitions. [2020-10-13 21:21:57,476 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 710 transitions. Word has length 109 [2020-10-13 21:21:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 21:21:57,477 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 710 transitions. [2020-10-13 21:21:57,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 21:21:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 710 transitions. [2020-10-13 21:21:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 21:21:57,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 21:21:57,480 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] [2020-10-13 21:21:57,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 21:21:57,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 21:21:57,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 21:21:57,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1863771582, now seen corresponding path program 1 times [2020-10-13 21:21:57,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 21:21:57,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249137320] [2020-10-13 21:21:57,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 21:21:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 21:21:57,567 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 21:21:57,568 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 21:21:57,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 21:21:57,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:21:57 BoogieIcfgContainer [2020-10-13 21:21:57,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 21:21:57,616 INFO L168 Benchmark]: Toolchain (without parser) took 27696.44 ms. Allocated memory was 148.9 MB in the beginning and 630.7 MB in the end (delta: 481.8 MB). Free memory was 100.8 MB in the beginning and 196.8 MB in the end (delta: -96.0 MB). Peak memory consumption was 385.8 MB. Max. memory is 7.1 GB. [2020-10-13 21:21:57,618 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 21:21:57,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1137.50 ms. Allocated memory was 148.9 MB in the beginning and 208.1 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 141.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-10-13 21:21:57,619 INFO L168 Benchmark]: Boogie Preprocessor took 131.90 ms. Allocated memory is still 208.1 MB. Free memory was 141.0 MB in the beginning and 135.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-13 21:21:57,623 INFO L168 Benchmark]: RCFGBuilder took 1147.60 ms. Allocated memory was 208.1 MB in the beginning and 237.0 MB in the end (delta: 28.8 MB). Free memory was 135.6 MB in the beginning and 127.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-10-13 21:21:57,625 INFO L168 Benchmark]: TraceAbstraction took 25273.34 ms. Allocated memory was 237.0 MB in the beginning and 630.7 MB in the end (delta: 393.7 MB). Free memory was 127.3 MB in the beginning and 196.8 MB in the end (delta: -69.5 MB). Peak memory consumption was 324.2 MB. Max. memory is 7.1 GB. [2020-10-13 21:21:57,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1137.50 ms. Allocated memory was 148.9 MB in the beginning and 208.1 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 141.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.90 ms. Allocated memory is still 208.1 MB. Free memory was 141.0 MB in the beginning and 135.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1147.60 ms. Allocated memory was 208.1 MB in the beginning and 237.0 MB in the end (delta: 28.8 MB). Free memory was 135.6 MB in the beginning and 127.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25273.34 ms. Allocated memory was 237.0 MB in the beginning and 630.7 MB in the end (delta: 393.7 MB). Free memory was 127.3 MB in the beginning and 196.8 MB in the end (delta: -69.5 MB). Peak memory consumption was 324.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3306]: 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 2948, overapproximation of bitwiseOr at line 2667. Possible FailurePath: [L2755] int ldv_irq_1_2 = 0; [L2756] int LDV_IN_INTERRUPT = 1; [L2757] int ldv_irq_1_3 = 0; [L2758] void *ldv_irq_data_1_1 ; [L2759] int ldv_irq_1_1 = 0; [L2760] int ldv_irq_1_0 = 0; [L2761] int probed_2 = 0; [L2762] int ldv_irq_line_1_3 ; [L2763] void *ldv_irq_data_1_0 ; [L2764] int ldv_state_variable_0 ; [L2765] int ldv_irq_line_1_0 ; [L2766] int ldv_state_variable_2 ; [L2767] void *ldv_irq_data_1_3 ; [L2768] int ref_cnt ; [L2769] int ldv_irq_line_1_1 ; [L2770] struct platform_device *iio_interrupt_trigger_driver_group1 ; [L2771] void *ldv_irq_data_1_2 ; [L2772] int ldv_state_variable_1 ; [L2773] int ldv_irq_line_1_2 ; [L2870] static struct iio_trigger_ops const iio_interrupt_trigger_ops = {& __this_module, 0, 0, 0}; [L2947-L2957] 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}; [L2973] int ldv_retval_0 ; [L2974] int ldv_retval_1 ; [L2977] int ldv_retval_2 ; [L3345] int ldv_module_refcounter = 1; [L3126] int tmp ; [L3127] int tmp___0 ; [L3128] int tmp___1 ; [L3130] FCALL ldv_initialize() [L3131] ldv_state_variable_1 = 1 [L3132] ref_cnt = 0 [L3133] ldv_state_variable_0 = 1 [L3134] ldv_state_variable_2 = 0 [L3136] tmp = __VERIFIER_nondet_int() [L3138] case 0: [L3144] case 1: [L3145] COND TRUE ldv_state_variable_0 != 0 [L3146] tmp___0 = __VERIFIER_nondet_int() [L3148] case 0: [L3156] case 1: [L3157] COND TRUE ldv_state_variable_0 == 1 [L3158] CALL, EXPR iio_interrupt_trigger_driver_init() [L2960] int tmp ; [L2962] CALL, EXPR ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L3283] ldv_func_ret_type___0 ldv_func_res ; [L3284] int tmp ; [L3286] CALL, EXPR __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3413] return __VERIFIER_nondet_int(); [L3286] RET, EXPR __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3286] tmp = __platform_driver_register(ldv_func_arg1, ldv_func_arg2) [L3287] ldv_func_res = tmp [L3288] ldv_state_variable_2 = 1 [L3289] CALL ldv_platform_driver_init_2() [L3091] void *tmp ; [L3093] CALL, EXPR ldv_init_zalloc(1472UL) [L2715] void *p ; [L2716] void *tmp ; [L2718] EXPR, FCALL calloc(1UL, size) [L2718] tmp = calloc(1UL, size) [L2719] p = tmp [L2720] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2677] COND FALSE !(!cond) [L2720] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2721] return (p); [L3093] RET, EXPR ldv_init_zalloc(1472UL) [L3093] tmp = ldv_init_zalloc(1472UL) [L3094] iio_interrupt_trigger_driver_group1 = (struct platform_device *)tmp [L3289] RET ldv_platform_driver_init_2() [L3290] return (ldv_func_res); [L2962] RET, EXPR ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L2962] tmp = ldv___platform_driver_register_10(& iio_interrupt_trigger_driver, & __this_module) [L2963] return (tmp); [L3158] RET, EXPR iio_interrupt_trigger_driver_init() [L3158] ldv_retval_0 = iio_interrupt_trigger_driver_init() [L3159] COND TRUE ldv_retval_0 == 0 [L3160] ldv_state_variable_0 = 3 [L3163] COND FALSE !(ldv_retval_0 != 0) [L3136] tmp = __VERIFIER_nondet_int() [L3138] case 0: [L3144] case 1: [L3178] case 2: [L3179] COND TRUE ldv_state_variable_2 != 0 [L3180] tmp___1 = __VERIFIER_nondet_int() [L3182] case 0: [L3183] COND TRUE ldv_state_variable_2 == 1 [L3184] CALL iio_interrupt_trigger_probe(iio_interrupt_trigger_driver_group1) [L2873] struct iio_interrupt_trigger_info *trig_info ; [L2874] struct iio_trigger *trig ; [L2875] unsigned long irqflags ; [L2876] struct resource *irq_res ; [L2877] int irq ; [L2878] int ret ; [L2879] void *tmp ; [L2881] ret = 0 [L2882] CALL, EXPR platform_get_resource(pdev, 1024U, 0U) [L3441] CALL, EXPR ldv_malloc(sizeof(struct resource)) [L2681] void *p ; [L2682] void *tmp ; [L2683] int tmp___0 ; [L2685] tmp___0 = __VERIFIER_nondet_int() [L2686] COND FALSE !(tmp___0 != 0) [L2689] tmp = malloc(size) [L2690] p = tmp [L2691] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2677] COND FALSE !(!cond) [L2691] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L2692] return (p); [L3441] RET, EXPR ldv_malloc(sizeof(struct resource)) [L3441] return ldv_malloc(sizeof(struct resource)); [L2882] RET, EXPR platform_get_resource(pdev, 1024U, 0U) [L2882] irq_res = platform_get_resource(pdev, 1024U, 0U) [L2883] COND FALSE !((unsigned long )irq_res == (unsigned long )((struct resource *)0)) [L2887] EXPR irq_res->flags [L2887] irqflags = (irq_res->flags & 15UL) | 128UL [L2888] EXPR irq_res->start [L2888] irq = (int )irq_res->start [L2889] trig = iio_trigger_alloc("irqtrig%d", irq) [L2890] COND FALSE !((unsigned long )trig == (unsigned long )((struct iio_trigger *)0)) [L2895] CALL, EXPR kzalloc(4UL, 208U) [L2665] void *tmp ; [L2667] CALL, EXPR kmalloc(size, flags | 32768U) [L2656] void *tmp___2 ; [L2658] CALL, EXPR __kmalloc(size, flags) [L2651] CALL, EXPR ldv_malloc(size) [L2681] void *p ; [L2682] void *tmp ; [L2683] int tmp___0 ; [L2685] tmp___0 = __VERIFIER_nondet_int() [L2686] COND TRUE tmp___0 != 0 [L2687] return ((void *)0); [L2651] RET, EXPR ldv_malloc(size) [L2651] return ldv_malloc(size); [L2658] RET, EXPR __kmalloc(size, flags) [L2658] tmp___2 = __kmalloc(size, flags) [L2659] return (tmp___2); [L2667] RET, EXPR kmalloc(size, flags | 32768U) [L2667] tmp = kmalloc(size, flags | 32768U) [L2668] return (tmp); [L2895] RET, EXPR kzalloc(4UL, 208U) [L2895] tmp = kzalloc(4UL, 208U) [L2896] trig_info = (struct iio_interrupt_trigger_info *)tmp [L2897] COND TRUE (unsigned long )trig_info == (unsigned long )((struct iio_interrupt_trigger_info *)0) [L2898] ret = -12 [L2924] CALL iio_trigger_put(trig) [L2839] EXPR trig->ops [L2839] EXPR (trig->ops)->owner [L2839] CALL ldv_module_put_5((trig->ops)->owner) [L3236] CALL ldv_module_put(ldv_func_arg1) [L3376] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L3377] COND TRUE ldv_module_refcounter <= 1 [L3378] CALL ldv_error() [L3306] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 400 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1490 SDtfs, 3638 SDslu, 1585 SDs, 0 SdLazy, 3397 SolverSat, 2108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 864 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 439 NumberOfCodeBlocks, 439 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 95725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 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...