/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=BIGGEST --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-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 23:05:55,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:05:55,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:05:55,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:05:55,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:05:55,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:05:55,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:05:55,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:05:55,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:05:56,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:05:56,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:05:56,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:05:56,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:05:56,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:05:56,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:05:56,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:05:56,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:05:56,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:05:56,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:05:56,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:05:56,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:05:56,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:05:56,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:05:56,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:05:56,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:05:56,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:05:56,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:05:56,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:05:56,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:05:56,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:05:56,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:05:56,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:05:56,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:05:56,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:05:56,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:05:56,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:05:56,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:05:56,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:05:56,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:05:56,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:05:56,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:05:56,068 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 [2020-10-12 23:05:56,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:05:56,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:05:56,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:05:56,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:05:56,115 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:05:56,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:05:56,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:05:56,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:05:56,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:05:56,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:05:56,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:05:56,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:05:56,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:05:56,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:05:56,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:05:56,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:05:56,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:05:56,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:05:56,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:05:56,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:05:56,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:05:56,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:05:56,122 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 23:05:56,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:05:56,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:05:56,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:05:56,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:05:56,458 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:05:56,459 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-12 23:05:56,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614365605/c821e35efa324224a165dc50fc002ed6/FLAG6d6f4dece [2020-10-12 23:05:57,331 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:05:57,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-12 23:05:57,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614365605/c821e35efa324224a165dc50fc002ed6/FLAG6d6f4dece [2020-10-12 23:05:57,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614365605/c821e35efa324224a165dc50fc002ed6 [2020-10-12 23:05:57,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:05:57,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:05:57,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:05:57,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:05:57,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:05:57,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:05:57" (1/1) ... [2020-10-12 23:05:57,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1dbd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:57, skipping insertion in model container [2020-10-12 23:05:57,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:05:57" (1/1) ... [2020-10-12 23:05:57,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:05:57,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:05:59,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:05:59,434 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:05:59,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:05:59,852 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:05:59,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59 WrapperNode [2020-10-12 23:05:59,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:05:59,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:05:59,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:05:59,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:05:59,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:05:59,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:05:59,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:05:59,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:06:00,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:06:00,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:06:00,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (1/1) ... [2020-10-12 23:06:00,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:06:00,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:06:00,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:06:00,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:06:00,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (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 [2020-10-12 23:06:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:06:00,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:06:00,240 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-12 23:06:00,240 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-12 23:06:00,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-12 23:06:00,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-12 23:06:00,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 23:06:00,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-12 23:06:00,243 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-12 23:06:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 23:06:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-12 23:06:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-12 23:06:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-12 23:06:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-12 23:06:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:06:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-12 23:06:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-12 23:06:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-12 23:06:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2020-10-12 23:06:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2020-10-12 23:06:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2020-10-12 23:06:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2020-10-12 23:06:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2020-10-12 23:06:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2020-10-12 23:06:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2020-10-12 23:06:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2020-10-12 23:06:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2020-10-12 23:06:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2020-10-12 23:06:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2020-10-12 23:06:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2020-10-12 23:06:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:06:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-10-12 23:06:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-12 23:06:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2020-10-12 23:06:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2020-10-12 23:06:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2020-10-12 23:06:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-12 23:06:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-12 23:06:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-12 23:06:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-12 23:06:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-12 23:06:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-12 23:06:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:06:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2020-10-12 23:06:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2020-10-12 23:06:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:06:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2020-10-12 23:06:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2020-10-12 23:06:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2020-10-12 23:06:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-12 23:06:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2020-10-12 23:06:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2020-10-12 23:06:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:06:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-12 23:06:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2020-10-12 23:06:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-12 23:06:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:06:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 23:06:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-12 23:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-12 23:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-12 23:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-12 23:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-12 23:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 23:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-12 23:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2020-10-12 23:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-12 23:06:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2020-10-12 23:06:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:06:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2020-10-12 23:06:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2020-10-12 23:06:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 23:06:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 23:06:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:06:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-12 23:06:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-12 23:06:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-12 23:06:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-12 23:06:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-12 23:06:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-12 23:06:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-12 23:06:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-12 23:06:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-12 23:06:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-12 23:06:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:06:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2020-10-12 23:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2020-10-12 23:06:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-12 23:06:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:06:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-12 23:06:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-12 23:06:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-12 23:06:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-12 23:06:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-12 23:06:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2020-10-12 23:06:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2020-10-12 23:06:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2020-10-12 23:06:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2020-10-12 23:06:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2020-10-12 23:06:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2020-10-12 23:06:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2020-10-12 23:06:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 23:06:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:06:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:06:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 23:06:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 23:06:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 23:06:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 23:06:02,041 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2020-10-12 23:06:07,936 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 23:06:07,953 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-12 23:06:07,953 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-12 23:06:08,082 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 23:06:08,127 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2020-10-12 23:06:08,128 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2020-10-12 23:06:08,467 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:06:08,467 INFO L295 CfgBuilder]: Removed 40 assume(true) statements. [2020-10-12 23:06:08,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:06:08 BoogieIcfgContainer [2020-10-12 23:06:08,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:06:08,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:06:08,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:06:08,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:06:08,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:05:57" (1/3) ... [2020-10-12 23:06:08,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9fcd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:06:08, skipping insertion in model container [2020-10-12 23:06:08,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:59" (2/3) ... [2020-10-12 23:06:08,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9fcd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:06:08, skipping insertion in model container [2020-10-12 23:06:08,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:06:08" (3/3) ... [2020-10-12 23:06:08,486 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-12 23:06:08,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:06:08,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:06:08,520 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:06:08,548 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:06:08,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:06:08,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:06:08,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:06:08,548 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:06:08,548 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:06:08,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:06:08,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:06:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states. [2020-10-12 23:06:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 23:06:08,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:06:08,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:06:08,594 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:06:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:06:08,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1189821431, now seen corresponding path program 1 times [2020-10-12 23:06:08,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:06:08,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224164197] [2020-10-12 23:06:08,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:06:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:09,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 23:06:15,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5791 [2020-10-12 23:06:15,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:06:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:06:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 23:06:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 23:06:21,463 WARN L193 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-12 23:06:21,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:06:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:21,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:25,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:25,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:06:25,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:25,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3567 [2020-10-12 23:06:25,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:06:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:06:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:06:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:06:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:06:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:25,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:25,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:25,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:06:25,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:25,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:06:25,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:06:25,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:06:25,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:06:25,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:06:25,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 23:06:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:25,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:25,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:06:25,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:06:25,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:06:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:06:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 23:06:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:06:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:06:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:25,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:25,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:25,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:06:25,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:06:25,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:06:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:06:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:06:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:06:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:06:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:06:25,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:06:25,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:06:25,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:06:25,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:06:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:06:25,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:06:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:06:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:06:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:06:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:06:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:06:25,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224164197] [2020-10-12 23:06:25,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:06:25,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 23:06:25,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146146307] [2020-10-12 23:06:25,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 23:06:25,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:06:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 23:06:25,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 23:06:25,487 INFO L87 Difference]: Start difference. First operand 691 states. Second operand 4 states. [2020-10-12 23:06:33,449 WARN L193 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 1059 [2020-10-12 23:07:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:07:03,422 INFO L93 Difference]: Finished difference Result 1634 states and 2443 transitions. [2020-10-12 23:07:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 23:07:03,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-12 23:07:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:07:03,454 INFO L225 Difference]: With dead ends: 1634 [2020-10-12 23:07:03,455 INFO L226 Difference]: Without dead ends: 1212 [2020-10-12 23:07:03,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 23:07:03,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2020-10-12 23:07:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 954. [2020-10-12 23:07:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2020-10-12 23:07:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1245 transitions. [2020-10-12 23:07:04,071 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1245 transitions. Word has length 30 [2020-10-12 23:07:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:07:04,072 INFO L479 AbstractCegarLoop]: Abstraction has 954 states and 1245 transitions. [2020-10-12 23:07:04,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 23:07:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1245 transitions. [2020-10-12 23:07:04,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 23:07:04,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:07:04,073 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] [2020-10-12 23:07:04,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:07:04,074 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:07:04,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:07:04,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1769900848, now seen corresponding path program 1 times [2020-10-12 23:07:04,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:07:04,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104591440] [2020-10-12 23:07:04,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:07:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:07,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:07,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 23:07:07,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:07,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3710 [2020-10-12 23:07:07,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:07:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:07:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 23:07:07,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:13,702 WARN L193 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-12 23:07:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:07:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:16,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:16,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:07:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3069 [2020-10-12 23:07:16,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:07:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:07:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:17,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:07:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:17,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:07:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:07:17,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:07:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:07:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:17,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 23:07:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:17,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:17,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:17,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:07:17,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:17,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:07:17,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:07:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:17,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 23:07:17,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:17,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:17,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:17,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:07:17,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:17,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:07:17,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:17,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:17,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:17,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:17,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:07:17,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:07:17,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:17,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:07:17,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104591440] [2020-10-12 23:07:17,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:07:17,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 23:07:17,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877106493] [2020-10-12 23:07:17,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 23:07:17,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:07:17,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 23:07:17,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 23:07:17,107 INFO L87 Difference]: Start difference. First operand 954 states and 1245 transitions. Second operand 4 states. [2020-10-12 23:07:24,911 WARN L193 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 1059 [2020-10-12 23:07:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:07:39,692 INFO L93 Difference]: Finished difference Result 1211 states and 1653 transitions. [2020-10-12 23:07:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 23:07:39,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-12 23:07:39,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:07:39,704 INFO L225 Difference]: With dead ends: 1211 [2020-10-12 23:07:39,705 INFO L226 Difference]: Without dead ends: 1197 [2020-10-12 23:07:39,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 23:07:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-10-12 23:07:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 942. [2020-10-12 23:07:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-12 23:07:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1229 transitions. [2020-10-12 23:07:40,171 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1229 transitions. Word has length 31 [2020-10-12 23:07:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:07:40,172 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1229 transitions. [2020-10-12 23:07:40,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 23:07:40,172 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1229 transitions. [2020-10-12 23:07:40,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 23:07:40,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:07:40,175 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, 1, 1, 1, 1, 1, 1] [2020-10-12 23:07:40,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:07:40,176 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:07:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:07:40,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1201633426, now seen corresponding path program 1 times [2020-10-12 23:07:40,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:07:40,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127085698] [2020-10-12 23:07:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:07:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:45,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:45,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 23:07:45,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:07:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 23:07:45,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:07:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 23:07:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:07:45,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:51,280 WARN L193 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-12 23:07:51,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:07:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:07:52,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-12 23:07:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:52,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:07:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:07:52,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:07:52,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:52,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 23:07:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:07:52,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 23:07:52,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:07:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 23:07:52,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:07:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:07:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:07:52,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:07:52,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 23:07:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 23:07:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:07:52,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 23:07:52,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 23:07:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:07:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:07:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:07:52,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:07:52,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:07:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:07:52,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:07:52,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:07:52,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:07:52,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:07:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:07:52,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:07:52,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:07:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:07:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:07:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:07:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:07:52,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127085698] [2020-10-12 23:07:52,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:07:52,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:07:52,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831512773] [2020-10-12 23:07:52,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:07:52,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:07:52,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:07:52,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:07:52,760 INFO L87 Difference]: Start difference. First operand 942 states and 1229 transitions. Second operand 7 states. [2020-10-12 23:08:01,106 WARN L193 SmtUtils]: Spent 5.66 s on a formula simplification that was a NOOP. DAG size: 1063 [2020-10-12 23:08:24,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:08:24,192 INFO L93 Difference]: Finished difference Result 2179 states and 2954 transitions. [2020-10-12 23:08:24,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 23:08:24,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-12 23:08:24,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:08:24,201 INFO L225 Difference]: With dead ends: 2179 [2020-10-12 23:08:24,202 INFO L226 Difference]: Without dead ends: 1259 [2020-10-12 23:08:24,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 23:08:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-10-12 23:08:24,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 942. [2020-10-12 23:08:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-12 23:08:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1228 transitions. [2020-10-12 23:08:24,810 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1228 transitions. Word has length 65 [2020-10-12 23:08:24,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:08:24,811 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1228 transitions. [2020-10-12 23:08:24,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:08:24,811 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1228 transitions. [2020-10-12 23:08:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 23:08:24,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:08:24,828 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, 1, 1, 1, 1, 1, 1] [2020-10-12 23:08:24,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 23:08:24,828 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:08:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:08:24,829 INFO L82 PathProgramCache]: Analyzing trace with hash 176939505, now seen corresponding path program 1 times [2020-10-12 23:08:24,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:08:24,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562879888] [2020-10-12 23:08:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:08:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:31,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:31,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 23:08:31,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:08:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6176 [2020-10-12 23:08:31,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:08:31,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 23:08:31,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 23:08:31,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:36,929 WARN L193 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 1057 [2020-10-12 23:08:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:08:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:08:39,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2600 [2020-10-12 23:08:39,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:08:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:08:39,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:08:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 23:08:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:08:39,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:08:39,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:08:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:08:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:08:39,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:08:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:08:39,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 23:08:39,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 23:08:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:08:39,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:08:39,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:08:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 23:08:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:08:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 23:08:39,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 23:08:39,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:08:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:08:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:08:39,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:08:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:08:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:08:39,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:08:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:08:39,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:08:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:08:39,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:08:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:08:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:08:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:08:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:08:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:08:39,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562879888] [2020-10-12 23:08:39,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:08:39,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:08:39,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482701655] [2020-10-12 23:08:39,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:08:39,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:08:39,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:08:39,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:08:39,906 INFO L87 Difference]: Start difference. First operand 942 states and 1228 transitions. Second operand 7 states. [2020-10-12 23:08:48,235 WARN L193 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-12 23:08:55,763 WARN L193 SmtUtils]: Spent 5.74 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-12 23:09:01,616 WARN L193 SmtUtils]: Spent 5.74 s on a formula simplification that was a NOOP. DAG size: 1066 [2020-10-12 23:09:08,069 WARN L193 SmtUtils]: Spent 6.02 s on a formula simplification that was a NOOP. DAG size: 1062 [2020-10-12 23:09:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:09:28,257 INFO L93 Difference]: Finished difference Result 2293 states and 3160 transitions. [2020-10-12 23:09:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 23:09:28,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-12 23:09:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:09:28,267 INFO L225 Difference]: With dead ends: 2293 [2020-10-12 23:09:28,268 INFO L226 Difference]: Without dead ends: 1366 [2020-10-12 23:09:28,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 23:09:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-12 23:09:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 945. [2020-10-12 23:09:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2020-10-12 23:09:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1231 transitions. [2020-10-12 23:09:28,861 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1231 transitions. Word has length 65 [2020-10-12 23:09:28,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:09:28,863 INFO L479 AbstractCegarLoop]: Abstraction has 945 states and 1231 transitions. [2020-10-12 23:09:28,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:09:28,863 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1231 transitions. [2020-10-12 23:09:28,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-12 23:09:28,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:09:28,866 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:09:28,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 23:09:28,867 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:09:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:09:28,867 INFO L82 PathProgramCache]: Analyzing trace with hash -43957718, now seen corresponding path program 1 times [2020-10-12 23:09:28,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:09:28,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377042989] [2020-10-12 23:09:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:09:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:29,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:34,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:34,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 23:09:34,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:09:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5285 [2020-10-12 23:09:34,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:09:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 23:09:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 23:09:34,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0