/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 21:55:03,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 21:55:03,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 21:55:03,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 21:55:03,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 21:55:03,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 21:55:03,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 21:55:03,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 21:55:03,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 21:55:03,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 21:55:03,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 21:55:03,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 21:55:03,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 21:55:03,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 21:55:03,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 21:55:03,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 21:55:03,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 21:55:03,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 21:55:03,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 21:55:03,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 21:55:03,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 21:55:03,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 21:55:03,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 21:55:03,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 21:55:03,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 21:55:03,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 21:55:03,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 21:55:03,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 21:55:03,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 21:55:03,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 21:55:03,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 21:55:03,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 21:55:03,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 21:55:03,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 21:55:03,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 21:55:03,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 21:55:03,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 21:55:03,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 21:55:03,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 21:55:03,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 21:55:03,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 21:55:03,182 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 [2020-10-29 21:55:03,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 21:55:03,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 21:55:03,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 21:55:03,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 21:55:03,239 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 21:55:03,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 21:55:03,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 21:55:03,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 21:55:03,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 21:55:03,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 21:55:03,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 21:55:03,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 21:55:03,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 21:55:03,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 21:55:03,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 21:55:03,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 21:55:03,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 21:55:03,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 21:55:03,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 21:55:03,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 21:55:03,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 21:55:03,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 21:55:03,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 21:55:03,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 21:55:03,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 21:55:03,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 21:55:03,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 21:55:03,244 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 21:55:03,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 21:55:03,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 21:55:03,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 21:55:03,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 21:55:03,653 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 21:55:03,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 21:55:03,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c62253f6e/0df3e821f6074da8b460f22e7a9567fa/FLAGf2fef8b27 [2020-10-29 21:55:04,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 21:55:04,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 21:55:04,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c62253f6e/0df3e821f6074da8b460f22e7a9567fa/FLAGf2fef8b27 [2020-10-29 21:55:04,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c62253f6e/0df3e821f6074da8b460f22e7a9567fa [2020-10-29 21:55:04,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 21:55:04,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 21:55:04,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 21:55:04,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 21:55:04,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 21:55:04,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:55:04" (1/1) ... [2020-10-29 21:55:04,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296a3f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:04, skipping insertion in model container [2020-10-29 21:55:04,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:55:04" (1/1) ... [2020-10-29 21:55:04,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 21:55:04,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 21:55:05,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 21:55:05,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 21:55:06,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 21:55:06,128 INFO L208 MainTranslator]: Completed translation [2020-10-29 21:55:06,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06 WrapperNode [2020-10-29 21:55:06,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 21:55:06,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 21:55:06,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 21:55:06,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 21:55:06,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (1/1) ... [2020-10-29 21:55:06,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 21:55:06,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 21:55:06,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 21:55:06,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 21:55:06,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (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 [2020-10-29 21:55:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 21:55:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 21:55:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 21:55:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 21:55:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-29 21:55:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 21:55:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 21:55:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-29 21:55:06,420 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2020-10-29 21:55:06,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-29 21:55:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 21:55:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-29 21:55:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-29 21:55:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-29 21:55:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-29 21:55:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-29 21:55:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 21:55:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-29 21:55:06,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 21:55:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 21:55:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 21:55:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 21:55:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-29 21:55:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-29 21:55:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-29 21:55:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-29 21:55:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-29 21:55:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-29 21:55:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-29 21:55:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 21:55:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 21:55:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-29 21:55:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2020-10-29 21:55:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2020-10-29 21:55:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-29 21:55:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 21:55:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 21:55:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 21:55:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 21:55:07,189 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 21:55:08,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 21:55:08,308 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 21:55:08,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:55:08 BoogieIcfgContainer [2020-10-29 21:55:08,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 21:55:08,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 21:55:08,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 21:55:08,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 21:55:08,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:55:04" (1/3) ... [2020-10-29 21:55:08,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781dec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:55:08, skipping insertion in model container [2020-10-29 21:55:08,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:55:06" (2/3) ... [2020-10-29 21:55:08,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781dec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:55:08, skipping insertion in model container [2020-10-29 21:55:08,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:55:08" (3/3) ... [2020-10-29 21:55:08,321 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-29 21:55:08,332 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 21:55:08,338 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 21:55:08,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 21:55:08,384 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 21:55:08,384 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 21:55:08,385 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 21:55:08,385 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 21:55:08,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 21:55:08,385 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 21:55:08,385 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 21:55:08,385 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 21:55:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states. [2020-10-29 21:55:08,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 21:55:08,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:55:08,426 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] [2020-10-29 21:55:08,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:55:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:55:08,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1966563065, now seen corresponding path program 1 times [2020-10-29 21:55:08,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:55:08,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257536427] [2020-10-29 21:55:08,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:55:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:08,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:09,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:10,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:10,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 21:55:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 21:55:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1819 [2020-10-29 21:55:10,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:10,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:55:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:55:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 21:55:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 21:55:11,401 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 21:55:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:11,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 21:55:11,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:55:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:55:11,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 21:55:11,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 21:55:11,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 21:55:11,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:11,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:55:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:11,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:11,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:55:11,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 21:55:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:55:11,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:11,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:55:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 21:55:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:55:11,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:55:11,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 21:55:11,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:55:11,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:11,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:11,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 21:55:11,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257536427] [2020-10-29 21:55:11,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:55:11,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 21:55:11,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924013198] [2020-10-29 21:55:11,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 21:55:11,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:55:11,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 21:55:11,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 21:55:11,923 INFO L87 Difference]: Start difference. First operand 512 states. Second operand 7 states. [2020-10-29 21:55:12,360 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 21:55:12,813 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 21:55:13,268 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 21:55:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:55:22,863 INFO L93 Difference]: Finished difference Result 1387 states and 1818 transitions. [2020-10-29 21:55:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 21:55:22,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-29 21:55:22,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:55:22,890 INFO L225 Difference]: With dead ends: 1387 [2020-10-29 21:55:22,890 INFO L226 Difference]: Without dead ends: 983 [2020-10-29 21:55:22,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-29 21:55:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2020-10-29 21:55:23,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 746. [2020-10-29 21:55:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-29 21:55:23,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 886 transitions. [2020-10-29 21:55:23,208 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 886 transitions. Word has length 51 [2020-10-29 21:55:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:55:23,208 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 886 transitions. [2020-10-29 21:55:23,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 21:55:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 886 transitions. [2020-10-29 21:55:23,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 21:55:23,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:55:23,220 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] [2020-10-29 21:55:23,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 21:55:23,221 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:55:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:55:23,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1332612368, now seen corresponding path program 1 times [2020-10-29 21:55:23,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:55:23,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207112094] [2020-10-29 21:55:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:55:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:23,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:23,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:23,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 21:55:23,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-29 21:55:23,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:23,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:55:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 21:55:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,213 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 21:55:24,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:24,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 21:55:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:55:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:24,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:55:24,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 21:55:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 21:55:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:24,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:55:24,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:24,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:24,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:24,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 21:55:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:55:24,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 21:55:24,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:55:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 21:55:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:55:24,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 21:55:24,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 21:55:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:24,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:24,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:24,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:24,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:24,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:24,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:24,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 21:55:24,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207112094] [2020-10-29 21:55:24,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:55:24,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 21:55:24,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963798814] [2020-10-29 21:55:24,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 21:55:24,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:55:24,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 21:55:24,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 21:55:24,574 INFO L87 Difference]: Start difference. First operand 746 states and 886 transitions. Second operand 7 states. [2020-10-29 21:55:24,958 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 21:55:25,429 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 21:55:25,842 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 21:55:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:55:30,374 INFO L93 Difference]: Finished difference Result 983 states and 1243 transitions. [2020-10-29 21:55:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 21:55:30,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-29 21:55:30,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:55:30,383 INFO L225 Difference]: With dead ends: 983 [2020-10-29 21:55:30,383 INFO L226 Difference]: Without dead ends: 978 [2020-10-29 21:55:30,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-29 21:55:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-10-29 21:55:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 745. [2020-10-29 21:55:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-29 21:55:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 884 transitions. [2020-10-29 21:55:30,545 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 884 transitions. Word has length 52 [2020-10-29 21:55:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:55:30,545 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 884 transitions. [2020-10-29 21:55:30,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 21:55:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 884 transitions. [2020-10-29 21:55:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 21:55:30,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:55:30,548 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] [2020-10-29 21:55:30,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 21:55:30,548 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:55:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:55:30,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1794844390, now seen corresponding path program 1 times [2020-10-29 21:55:30,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:55:30,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231450980] [2020-10-29 21:55:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:55:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:30,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:30,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 21:55:31,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:31,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-29 21:55:31,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:55:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 21:55:31,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:31,528 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 21:55:31,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:31,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 21:55:31,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:55:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:55:31,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 21:55:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 21:55:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:31,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:31,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 21:55:31,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:31,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:31,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:31,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:31,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 21:55:31,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 21:55:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:55:31,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:31,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:55:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 21:55:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:55:31,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 21:55:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:55:31,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:31,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:31,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:31,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:31,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:31,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:31,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:31,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:31,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:31,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 21:55:31,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231450980] [2020-10-29 21:55:31,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:55:31,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 21:55:31,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012748442] [2020-10-29 21:55:31,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 21:55:31,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:55:31,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 21:55:31,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 21:55:31,899 INFO L87 Difference]: Start difference. First operand 745 states and 884 transitions. Second operand 7 states. [2020-10-29 21:55:32,309 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 21:55:32,776 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 21:55:33,198 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 21:55:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:55:37,834 INFO L93 Difference]: Finished difference Result 982 states and 1241 transitions. [2020-10-29 21:55:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 21:55:37,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-10-29 21:55:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:55:37,841 INFO L225 Difference]: With dead ends: 982 [2020-10-29 21:55:37,841 INFO L226 Difference]: Without dead ends: 977 [2020-10-29 21:55:37,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-29 21:55:37,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-29 21:55:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 744. [2020-10-29 21:55:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-29 21:55:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 882 transitions. [2020-10-29 21:55:38,012 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 882 transitions. Word has length 53 [2020-10-29 21:55:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:55:38,012 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 882 transitions. [2020-10-29 21:55:38,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 21:55:38,012 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 882 transitions. [2020-10-29 21:55:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 21:55:38,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:55:38,014 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] [2020-10-29 21:55:38,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 21:55:38,015 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:55:38,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:55:38,016 INFO L82 PathProgramCache]: Analyzing trace with hash 42921107, now seen corresponding path program 1 times [2020-10-29 21:55:38,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:55:38,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252093517] [2020-10-29 21:55:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:55:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:38,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:38,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 21:55:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-29 21:55:38,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:38,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 21:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 21:55:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:38,860 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 21:55:38,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:38,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:38,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 21:55:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:55:39,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 21:55:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 21:55:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:39,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:39,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:39,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:39,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:39,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:39,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 21:55:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:55:39,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:39,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 21:55:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:39,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 21:55:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 21:55:39,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 21:55:39,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 21:55:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 21:55:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 21:55:39,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 21:55:39,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:39,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:39,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 21:55:39,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252093517] [2020-10-29 21:55:39,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 21:55:39,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 21:55:39,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150335871] [2020-10-29 21:55:39,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 21:55:39,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 21:55:39,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 21:55:39,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 21:55:39,189 INFO L87 Difference]: Start difference. First operand 744 states and 882 transitions. Second operand 7 states. [2020-10-29 21:55:39,529 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 21:55:40,019 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 21:55:40,451 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 21:55:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 21:55:45,124 INFO L93 Difference]: Finished difference Result 981 states and 1239 transitions. [2020-10-29 21:55:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 21:55:45,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2020-10-29 21:55:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 21:55:45,131 INFO L225 Difference]: With dead ends: 981 [2020-10-29 21:55:45,131 INFO L226 Difference]: Without dead ends: 958 [2020-10-29 21:55:45,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-29 21:55:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-29 21:55:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 725. [2020-10-29 21:55:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-10-29 21:55:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 860 transitions. [2020-10-29 21:55:45,266 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 860 transitions. Word has length 54 [2020-10-29 21:55:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 21:55:45,267 INFO L481 AbstractCegarLoop]: Abstraction has 725 states and 860 transitions. [2020-10-29 21:55:45,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 21:55:45,267 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 860 transitions. [2020-10-29 21:55:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-29 21:55:45,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 21:55:45,271 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 21:55:45,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 21:55:45,272 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 21:55:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 21:55:45,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1288389916, now seen corresponding path program 1 times [2020-10-29 21:55:45,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 21:55:45,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074933359] [2020-10-29 21:55:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 21:55:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:45,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:45,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:46,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-29 21:55:50,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 21:55:50,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 21:55:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:50,815 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 21:55:50,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 21:55:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 21:55:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:50,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:50,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:50,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 21:55:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:50,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:50,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:50,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:50,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:50,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 21:55:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:50,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:50,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:50,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:50,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:50,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 21:55:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:51,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:51,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 21:55:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 21:55:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 21:55:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 21:55:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-29 21:55:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 21:55:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 21:55:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 21:55:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 21:55:56,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:55:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 21:55:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:55:56,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 21:55:56,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 21:55:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 21:55:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 21:55:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:55:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 21:55:56,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:56,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 21:55:56,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 21:55:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 21:55:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 21:55:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:56,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 21:55:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:56,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:56,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:56,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:56,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:56,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:56,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 21:55:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 21:55:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 21:55:56,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 21:55:56,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 21:55:56,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 21:55:56,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 21:55:56,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 21:55:56,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 21:55:56,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 21:55:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 21:55:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 21:55:56,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 21:55:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 21:55:56,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 21:55:56,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 21:55:56,518 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 33 more [2020-10-29 21:55:56,527 INFO L168 Benchmark]: Toolchain (without parser) took 51825.67 ms. Allocated memory was 162.5 MB in the beginning and 836.8 MB in the end (delta: 674.2 MB). Free memory was 132.6 MB in the beginning and 746.5 MB in the end (delta: -613.9 MB). Peak memory consumption was 61.1 MB. Max. memory is 8.0 GB. [2020-10-29 21:55:56,527 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory is still 100.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 21:55:56,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1419.88 ms. Allocated memory is still 162.5 MB. Free memory was 131.9 MB in the beginning and 118.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. [2020-10-29 21:55:56,528 INFO L168 Benchmark]: Boogie Preprocessor took 202.28 ms. Allocated memory is still 162.5 MB. Free memory was 118.7 MB in the beginning and 110.9 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-29 21:55:56,531 INFO L168 Benchmark]: RCFGBuilder took 1978.01 ms. Allocated memory was 162.5 MB in the beginning and 231.7 MB in the end (delta: 69.2 MB). Free memory was 110.9 MB in the beginning and 181.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 61.1 MB. Max. memory is 8.0 GB. [2020-10-29 21:55:56,535 INFO L168 Benchmark]: TraceAbstraction took 48210.88 ms. Allocated memory was 231.7 MB in the beginning and 836.8 MB in the end (delta: 605.0 MB). Free memory was 181.1 MB in the beginning and 746.5 MB in the end (delta: -565.3 MB). Peak memory consumption was 39.7 MB. Max. memory is 8.0 GB. [2020-10-29 21:55:56,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory is still 100.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1419.88 ms. Allocated memory is still 162.5 MB. Free memory was 131.9 MB in the beginning and 118.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 202.28 ms. Allocated memory is still 162.5 MB. Free memory was 118.7 MB in the beginning and 110.9 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1978.01 ms. Allocated memory was 162.5 MB in the beginning and 231.7 MB in the end (delta: 69.2 MB). Free memory was 110.9 MB in the beginning and 181.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 61.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48210.88 ms. Allocated memory was 231.7 MB in the beginning and 836.8 MB in the end (delta: 605.0 MB). Free memory was 181.1 MB in the beginning and 746.5 MB in the end (delta: -565.3 MB). Peak memory consumption was 39.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...