/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 03:09:31,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 03:09:31,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 03:09:31,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 03:09:31,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 03:09:31,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 03:09:31,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 03:09:31,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 03:09:31,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 03:09:31,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 03:09:31,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 03:09:31,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 03:09:31,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 03:09:31,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 03:09:31,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 03:09:31,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 03:09:31,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 03:09:31,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 03:09:31,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 03:09:31,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 03:09:31,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 03:09:31,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 03:09:31,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 03:09:31,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 03:09:31,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 03:09:31,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 03:09:31,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 03:09:31,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 03:09:31,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 03:09:31,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 03:09:31,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 03:09:31,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 03:09:31,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 03:09:31,387 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 [2020-10-28 03:09:31,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 03:09:31,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 03:09:31,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 03:09:31,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 03:09:31,417 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 03:09:31,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 03:09:31,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 03:09:31,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 03:09:31,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 03:09:31,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 03:09:31,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 03:09:31,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 03:09:31,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 03:09:31,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 03:09:31,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 03:09:31,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 03:09:31,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 03:09:31,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 03:09:31,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:09:31,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 03:09:31,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 03:09:31,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 03:09:31,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 03:09:31,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 03:09:31,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 03:09:31,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 03:09:31,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 03:09:31,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 03:09:31,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 03:09:31,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 03:09:31,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 03:09:31,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 03:09:31,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 03:09:31,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-28 03:09:31,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/095582dc5/bf969623a20145f7998cb39f1340d161/FLAGe6b3be8d5 [2020-10-28 03:09:33,006 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 03:09:33,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-28 03:09:33,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/095582dc5/bf969623a20145f7998cb39f1340d161/FLAGe6b3be8d5 [2020-10-28 03:09:33,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/095582dc5/bf969623a20145f7998cb39f1340d161 [2020-10-28 03:09:33,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 03:09:33,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 03:09:33,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 03:09:33,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 03:09:33,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 03:09:33,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:09:33" (1/1) ... [2020-10-28 03:09:33,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b305526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:33, skipping insertion in model container [2020-10-28 03:09:33,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:09:33" (1/1) ... [2020-10-28 03:09:33,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 03:09:33,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 03:09:34,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:09:34,804 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 03:09:35,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:09:35,221 INFO L208 MainTranslator]: Completed translation [2020-10-28 03:09:35,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35 WrapperNode [2020-10-28 03:09:35,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 03:09:35,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 03:09:35,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 03:09:35,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 03:09:35,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (1/1) ... [2020-10-28 03:09:35,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 03:09:35,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 03:09:35,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 03:09:35,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 03:09:35,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (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 [2020-10-28 03:09:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 03:09:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 03:09:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:09:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 03:09:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-10-28 03:09:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-10-28 03:09:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-28 03:09:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-28 03:09:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 03:09:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 03:09:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 03:09:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 03:09:35,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 03:09:35,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 03:09:35,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 03:09:35,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 03:09:35,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 03:09:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 03:09:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 03:09:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 03:09:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 03:09:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-28 03:09:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-28 03:09:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2020-10-28 03:09:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-28 03:09:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2020-10-28 03:09:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-28 03:09:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-28 03:09:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-28 03:09:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-28 03:09:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-28 03:09:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-28 03:09:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-28 03:09:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-28 03:09:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-28 03:09:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 03:09:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-28 03:09:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2020-10-28 03:09:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 03:09:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 03:09:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 03:09:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 03:09:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 03:09:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-28 03:09:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 03:09:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-28 03:09:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 03:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 03:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-28 03:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 03:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 03:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 03:09:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-28 03:09:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 03:09:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 03:09:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 03:09:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 03:09:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-10-28 03:09:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 03:09:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-10-28 03:09:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-28 03:09:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-28 03:09:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 03:09:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-28 03:09:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2020-10-28 03:09:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 03:09:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2020-10-28 03:09:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-28 03:09:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 03:09:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 03:09:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-28 03:09:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-28 03:09:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-28 03:09:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-28 03:09:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 03:09:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 03:09:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-28 03:09:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 03:09:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-28 03:09:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-28 03:09:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-28 03:09:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 03:09:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 03:09:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 03:09:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-28 03:09:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-28 03:09:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2020-10-28 03:09:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2020-10-28 03:09:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 03:09:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-28 03:09:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 03:09:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 03:09:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 03:09:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 03:09:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 03:09:36,679 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 03:09:43,891 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-28 03:09:45,669 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 03:09:45,669 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-28 03:09:45,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:09:45 BoogieIcfgContainer [2020-10-28 03:09:45,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 03:09:45,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 03:09:45,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 03:09:45,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 03:09:45,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:09:33" (1/3) ... [2020-10-28 03:09:45,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eefda85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:09:45, skipping insertion in model container [2020-10-28 03:09:45,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:09:35" (2/3) ... [2020-10-28 03:09:45,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eefda85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:09:45, skipping insertion in model container [2020-10-28 03:09:45,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:09:45" (3/3) ... [2020-10-28 03:09:45,681 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-28 03:09:45,693 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 03:09:45,699 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 03:09:45,713 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 03:09:45,746 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 03:09:45,746 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 03:09:45,746 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 03:09:45,747 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 03:09:45,747 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 03:09:45,747 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 03:09:45,747 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 03:09:45,747 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 03:09:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states. [2020-10-28 03:09:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 03:09:45,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:09:45,793 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] [2020-10-28 03:09:45,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:09:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:09:45,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1681078574, now seen corresponding path program 1 times [2020-10-28 03:09:45,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:09:45,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771877047] [2020-10-28 03:09:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:09:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:47,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:52,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:52,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 03:09:52,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:09:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5648 [2020-10-28 03:09:52,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:09:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 03:09:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 03:09:52,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 03:09:57,737 WARN L193 SmtUtils]: Spent 5.32 s on a formula simplification that was a NOOP. DAG size: 1126 [2020-10-28 03:09:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:59,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1234 [2020-10-28 03:09:59,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:59,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:09:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:59,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:09:59,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:09:59,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 03:09:59,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:09:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:09:59,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:09:59,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:59,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 03:09:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 03:09:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:59,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:59,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:59,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 03:09:59,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:59,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:59,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:59,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:59,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:09:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 03:09:59,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771877047] [2020-10-28 03:09:59,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:09:59,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 03:09:59,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394781734] [2020-10-28 03:09:59,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 03:09:59,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:09:59,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 03:09:59,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 03:09:59,376 INFO L87 Difference]: Start difference. First operand 797 states. Second operand 6 states. [2020-10-28 03:10:04,624 WARN L193 SmtUtils]: Spent 5.18 s on a formula simplification that was a NOOP. DAG size: 1129 [2020-10-28 03:10:12,894 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 1131 [2020-10-28 03:10:19,471 WARN L193 SmtUtils]: Spent 5.09 s on a formula simplification that was a NOOP. DAG size: 1128 [2020-10-28 03:10:50,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:10:50,308 INFO L93 Difference]: Finished difference Result 2057 states and 2828 transitions. [2020-10-28 03:10:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:10:50,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-28 03:10:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:10:50,348 INFO L225 Difference]: With dead ends: 2057 [2020-10-28 03:10:50,348 INFO L226 Difference]: Without dead ends: 1405 [2020-10-28 03:10:50,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:10:50,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2020-10-28 03:10:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1161. [2020-10-28 03:10:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-10-28 03:10:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1526 transitions. [2020-10-28 03:10:51,013 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1526 transitions. Word has length 41 [2020-10-28 03:10:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:10:51,013 INFO L481 AbstractCegarLoop]: Abstraction has 1161 states and 1526 transitions. [2020-10-28 03:10:51,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 03:10:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1526 transitions. [2020-10-28 03:10:51,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 03:10:51,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:10:51,018 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:10:51,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 03:10:51,019 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:10:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:10:51,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1657411515, now seen corresponding path program 1 times [2020-10-28 03:10:51,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:10:51,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395077266] [2020-10-28 03:10:51,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:10:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:51,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:56,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:56,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 03:10:56,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:10:56,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5271 [2020-10-28 03:10:56,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:10:56,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 03:10:56,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:10:56,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:01,902 WARN L193 SmtUtils]: Spent 5.17 s on a formula simplification that was a NOOP. DAG size: 1126 [2020-10-28 03:11:01,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:11:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:02,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:02,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:11:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 904 [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:02,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:11:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:11:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:11:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:11:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:11:03,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:11:03,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 03:11:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:11:03,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 03:11:03,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:11:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:11:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:11:03,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:11:03,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:11:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:11:03,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:11:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:11:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:03,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:03,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:11:03,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:11:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:11:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:11:03,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395077266] [2020-10-28 03:11:03,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:11:03,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:11:03,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417097542] [2020-10-28 03:11:03,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:11:03,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:11:03,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:11:03,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:11:03,288 INFO L87 Difference]: Start difference. First operand 1161 states and 1526 transitions. Second operand 7 states. [2020-10-28 03:11:08,542 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 1129 [2020-10-28 03:11:19,523 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 1131 [2020-10-28 03:11:26,693 WARN L193 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 1128 [2020-10-28 03:11:53,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:11:53,299 INFO L93 Difference]: Finished difference Result 2133 states and 2791 transitions. [2020-10-28 03:11:53,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:11:53,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-28 03:11:53,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:11:53,319 INFO L225 Difference]: With dead ends: 2133 [2020-10-28 03:11:53,319 INFO L226 Difference]: Without dead ends: 2118 [2020-10-28 03:11:53,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:11:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-28 03:11:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1165. [2020-10-28 03:11:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2020-10-28 03:11:53,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1528 transitions. [2020-10-28 03:11:53,907 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1528 transitions. Word has length 57 [2020-10-28 03:11:53,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:11:53,908 INFO L481 AbstractCegarLoop]: Abstraction has 1165 states and 1528 transitions. [2020-10-28 03:11:53,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:11:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1528 transitions. [2020-10-28 03:11:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 03:11:53,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:11:53,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:11:53,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 03:11:53,912 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:11:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:11:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash 848064889, now seen corresponding path program 1 times [2020-10-28 03:11:53,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:11:53,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477950965] [2020-10-28 03:11:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:11:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:11:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:11:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:11:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 03:11:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:11:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5332 [2020-10-28 03:11:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:11:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:11:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:11:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 03:11:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:05,205 WARN L193 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 1126 [2020-10-28 03:12:05,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:12:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:05,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:07,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:07,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:12:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2471 [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:12:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:07,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:12:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:07,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:07,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:07,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:12:07,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:07,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:12:07,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:12:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:12:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:07,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:12:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:07,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:07,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:07,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:12:07,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:07,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 03:12:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:08,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:08,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:12:08,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 03:12:08,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:12:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:12:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:08,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:12:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:12:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:12:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:08,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:12:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:08,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:12:08,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:12:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:08,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:12:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:12:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:12:08,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:12:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:12:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:08,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:12:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:08,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:12:08,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:12:08,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:12:08,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:12:08,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:12:08,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:12:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:12:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:12:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:12:08,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:12:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:12:08,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477950965] [2020-10-28 03:12:08,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:12:08,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 03:12:08,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849565325] [2020-10-28 03:12:08,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 03:12:08,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:12:08,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 03:12:08,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 03:12:08,176 INFO L87 Difference]: Start difference. First operand 1165 states and 1528 transitions. Second operand 8 states. [2020-10-28 03:12:13,625 WARN L193 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 1129 [2020-10-28 03:12:21,248 WARN L193 SmtUtils]: Spent 5.37 s on a formula simplification that was a NOOP. DAG size: 1132 [2020-10-28 03:12:26,904 WARN L193 SmtUtils]: Spent 5.44 s on a formula simplification that was a NOOP. DAG size: 1129 [2020-10-28 03:12:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:12:58,007 INFO L93 Difference]: Finished difference Result 3862 states and 5105 transitions. [2020-10-28 03:12:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:12:58,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-10-28 03:12:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:12:58,025 INFO L225 Difference]: With dead ends: 3862 [2020-10-28 03:12:58,026 INFO L226 Difference]: Without dead ends: 2724 [2020-10-28 03:12:58,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-28 03:12:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2020-10-28 03:12:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2334. [2020-10-28 03:12:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2334 states. [2020-10-28 03:12:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3080 transitions. [2020-10-28 03:12:59,190 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3080 transitions. Word has length 57 [2020-10-28 03:12:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:12:59,191 INFO L481 AbstractCegarLoop]: Abstraction has 2334 states and 3080 transitions. [2020-10-28 03:12:59,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 03:12:59,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3080 transitions. [2020-10-28 03:12:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 03:12:59,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:12:59,194 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:12:59,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 03:12:59,194 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:12:59,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:12:59,195 INFO L82 PathProgramCache]: Analyzing trace with hash -3445948, now seen corresponding path program 1 times [2020-10-28 03:12:59,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:12:59,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876562381] [2020-10-28 03:12:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:12:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:12:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:04,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:04,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 03:13:04,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5127 [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 03:13:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:10,025 WARN L193 SmtUtils]: Spent 5.29 s on a formula simplification that was a NOOP. DAG size: 1126 [2020-10-28 03:13:10,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:13:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:10,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:11,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:11,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:11,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-10-28 03:13:11,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:13:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:13:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:12,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:13:12,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:12,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:13:12,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:13:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:13:12,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:13:12,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:13:12,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 03:13:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:13:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 03:13:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:13:12,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:13:12,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:13:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:13:12,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:13:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:13:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:12,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:12,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:13:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:13:12,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:13:12,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:13:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:12,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:12,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:12,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:12,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:13:12,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:13:12,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876562381] [2020-10-28 03:13:12,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:13:12,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:13:12,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750989816] [2020-10-28 03:13:12,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:13:12,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:13:12,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:13:12,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:13:12,351 INFO L87 Difference]: Start difference. First operand 2334 states and 3080 transitions. Second operand 7 states.