/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:50:11,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:50:11,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:50:11,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:50:11,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:50:11,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:50:11,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:50:11,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:50:11,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:50:11,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:50:11,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:50:11,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:50:11,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:50:11,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:50:11,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:50:11,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:50:11,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:50:11,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:50:11,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:50:11,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:50:11,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:50:11,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:50:11,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:50:11,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:50:11,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:50:11,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:50:11,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:50:11,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:50:11,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:50:11,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:50:11,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:50:11,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:50:11,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:50:11,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:50:11,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:50:11,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:50:11,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:50:11,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:50:11,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:50:11,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:50:11,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:50:11,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:50:11,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:50:11,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:50:11,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:50:11,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:50:11,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:50:11,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:50:11,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:50:11,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:50:11,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:50:11,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:50:11,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:50:11,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:50:11,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:50:11,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:50:11,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:50:11,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:50:11,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:50:11,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:50:11,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:50:11,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:50:11,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:50:11,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:50:11,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:50:11,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:50:11,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:50:11,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:50:11,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:50:11,804 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:50:12,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:50:12,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:50:12,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:50:12,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:50:12,105 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:50:12,105 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-13 17:50:12,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fc68d42d/510b502516494ac3876981a182e5f7f3/FLAG5fe3cad4b [2020-10-13 17:50:12,879 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:50:12,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-13 17:50:12,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fc68d42d/510b502516494ac3876981a182e5f7f3/FLAG5fe3cad4b [2020-10-13 17:50:13,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fc68d42d/510b502516494ac3876981a182e5f7f3 [2020-10-13 17:50:13,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:50:13,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:50:13,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:50:13,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:50:13,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:50:13,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:50:13" (1/1) ... [2020-10-13 17:50:13,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585b843f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:13, skipping insertion in model container [2020-10-13 17:50:13,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:50:13" (1/1) ... [2020-10-13 17:50:13,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:50:13,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:50:14,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:50:14,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:50:14,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:50:14,940 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:50:14,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14 WrapperNode [2020-10-13 17:50:14,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:50:14,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:50:14,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:50:14,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:50:14,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:14,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... [2020-10-13 17:50:15,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:50:15,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:50:15,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:50:15,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:50:15,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:50:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:50:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:50:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:50:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-10-13 17:50:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-10-13 17:50:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-13 17:50:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-13 17:50:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 17:50:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:50:15,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:50:15,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 17:50:15,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 17:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 17:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 17:50:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:50:15,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 17:50:15,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-13 17:50:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-13 17:50:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-10-13 17:50:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-10-13 17:50:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-13 17:50:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2020-10-13 17:50:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2020-10-13 17:50:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2020-10-13 17:50:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-13 17:50:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-13 17:50:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2020-10-13 17:50:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2020-10-13 17:50:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-13 17:50:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-13 17:50:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-13 17:50:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-13 17:50:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-13 17:50:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-13 17:50:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-13 17:50:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-13 17:50:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-13 17:50:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:50:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-13 17:50:15,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2020-10-13 17:50:15,310 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 17:50:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 17:50:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 17:50:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 17:50:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-13 17:50:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-13 17:50:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-13 17:50:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 17:50:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-13 17:50:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-13 17:50:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 17:50:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:50:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 17:50:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-13 17:50:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:50:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:50:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:50:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-13 17:50:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2020-10-13 17:50:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 17:50:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2020-10-13 17:50:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-13 17:50:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-13 17:50:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-13 17:50:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-13 17:50:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-13 17:50:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-13 17:50:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-13 17:50:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-13 17:50:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-13 17:50:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-13 17:50:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 17:50:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-13 17:50:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-13 17:50:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-13 17:50:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-13 17:50:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-13 17:50:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-13 17:50:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-13 17:50:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-13 17:50:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:50:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:50:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:50:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:50:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:50:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-13 17:50:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-13 17:50:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-13 17:50:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-13 17:50:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2020-10-13 17:50:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2020-10-13 17:50:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2020-10-13 17:50:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2020-10-13 17:50:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2020-10-13 17:50:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:50:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:50:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-13 17:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:50:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:50:16,446 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 17:50:21,982 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-13 17:50:23,567 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:50:23,567 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 17:50:23,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:50:23 BoogieIcfgContainer [2020-10-13 17:50:23,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:50:23,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:50:23,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:50:23,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:50:23,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:50:13" (1/3) ... [2020-10-13 17:50:23,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc1ed3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:50:23, skipping insertion in model container [2020-10-13 17:50:23,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:14" (2/3) ... [2020-10-13 17:50:23,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc1ed3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:50:23, skipping insertion in model container [2020-10-13 17:50:23,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:50:23" (3/3) ... [2020-10-13 17:50:23,588 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2020-10-13 17:50:23,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:50:23,609 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:50:23,624 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:50:23,661 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:50:23,661 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:50:23,661 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:50:23,661 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:50:23,661 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:50:23,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:50:23,662 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:50:23,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:50:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states. [2020-10-13 17:50:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 17:50:23,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:50:23,731 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] [2020-10-13 17:50:23,732 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:50:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:50:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1220595937, now seen corresponding path program 1 times [2020-10-13 17:50:23,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:50:23,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883012947] [2020-10-13 17:50:23,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:50:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:24,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:28,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:31,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:31,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 17:50:31,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:50:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6981 [2020-10-13 17:50:31,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:50:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 17:50:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:50:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:50:37,894 WARN L193 SmtUtils]: Spent 6.01 s on a formula simplification that was a NOOP. DAG size: 1114 [2020-10-13 17:50:37,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:50:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:37,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:50:39,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1487 [2020-10-13 17:50:39,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:50:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:50:39,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:50:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:50:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:50:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:50:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:50:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:50:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:39,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:50:39,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:50:39,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:50:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:50:39,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 17:50:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 17:50:39,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 17:50:39,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 17:50:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:50:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:50:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:39,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:50:39,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:50:39,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:50:39,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:50:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:50:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:50:39,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:50:39,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:50:39,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:50:39,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:50:39,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:50:39,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:50:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:50:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:50:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:50:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:50:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:50:39,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883012947] [2020-10-13 17:50:39,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:50:39,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:50:39,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672505087] [2020-10-13 17:50:39,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:50:39,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:50:39,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:50:39,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:50:39,904 INFO L87 Difference]: Start difference. First operand 793 states. Second operand 6 states. [2020-10-13 17:50:46,135 WARN L193 SmtUtils]: Spent 6.17 s on a formula simplification that was a NOOP. DAG size: 1117 [2020-10-13 17:50:55,441 WARN L193 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 1119 [2020-10-13 17:51:02,895 WARN L193 SmtUtils]: Spent 6.02 s on a formula simplification that was a NOOP. DAG size: 1116 [2020-10-13 17:51:37,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:51:37,566 INFO L93 Difference]: Finished difference Result 2051 states and 2819 transitions. [2020-10-13 17:51:37,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:51:37,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-13 17:51:37,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:51:37,601 INFO L225 Difference]: With dead ends: 2051 [2020-10-13 17:51:37,601 INFO L226 Difference]: Without dead ends: 1403 [2020-10-13 17:51:37,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:51:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-13 17:51:38,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1159. [2020-10-13 17:51:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2020-10-13 17:51:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1524 transitions. [2020-10-13 17:51:38,105 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1524 transitions. Word has length 39 [2020-10-13 17:51:38,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:51:38,106 INFO L479 AbstractCegarLoop]: Abstraction has 1159 states and 1524 transitions. [2020-10-13 17:51:38,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:51:38,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1524 transitions. [2020-10-13 17:51:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 17:51:38,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:51:38,110 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] [2020-10-13 17:51:38,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:51:38,111 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:51:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:51:38,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1910806835, now seen corresponding path program 1 times [2020-10-13 17:51:38,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:51:38,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395473963] [2020-10-13 17:51:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:51:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:38,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:43,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 17:51:43,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:51:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5562 [2020-10-13 17:51:43,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:51:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 17:51:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:51:43,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:50,211 WARN L193 SmtUtils]: Spent 6.09 s on a formula simplification that was a NOOP. DAG size: 1114 [2020-10-13 17:51:50,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:51:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:51:51,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-10-13 17:51:51,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:51:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:51,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:51:51,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:51:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:51:51,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:51:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:51:51,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 17:51:51,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:51:51,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:51:51,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:51:51,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:51:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:51:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:51:51,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:51,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:51,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:51,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:51,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:51:51,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:51,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 17:51:51,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395473963] [2020-10-13 17:51:51,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:51:51,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:51:51,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505310947] [2020-10-13 17:51:51,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:51:51,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:51:51,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:51:51,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:51:51,669 INFO L87 Difference]: Start difference. First operand 1159 states and 1524 transitions. Second operand 7 states. [2020-10-13 17:51:57,848 WARN L193 SmtUtils]: Spent 6.15 s on a formula simplification that was a NOOP. DAG size: 1117 [2020-10-13 17:52:10,483 WARN L193 SmtUtils]: Spent 6.42 s on a formula simplification that was a NOOP. DAG size: 1119 [2020-10-13 17:52:18,842 WARN L193 SmtUtils]: Spent 6.35 s on a formula simplification that was a NOOP. DAG size: 1116 [2020-10-13 17:52:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:52:49,321 INFO L93 Difference]: Finished difference Result 2127 states and 2785 transitions. [2020-10-13 17:52:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:52:49,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-10-13 17:52:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:52:49,336 INFO L225 Difference]: With dead ends: 2127 [2020-10-13 17:52:49,336 INFO L226 Difference]: Without dead ends: 2114 [2020-10-13 17:52:49,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:52:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2020-10-13 17:52:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1163. [2020-10-13 17:52:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2020-10-13 17:52:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1526 transitions. [2020-10-13 17:52:49,870 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1526 transitions. Word has length 55 [2020-10-13 17:52:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:52:49,870 INFO L479 AbstractCegarLoop]: Abstraction has 1163 states and 1526 transitions. [2020-10-13 17:52:49,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:52:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1526 transitions. [2020-10-13 17:52:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 17:52:49,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:52:49,873 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] [2020-10-13 17:52:49,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:52:49,874 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:52:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:52:49,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1853548533, now seen corresponding path program 1 times [2020-10-13 17:52:49,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:52:49,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126564124] [2020-10-13 17:52:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:52:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:50,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:55,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:55,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 17:52:55,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 17:52:55,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:52:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:52:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 17:52:55,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:01,550 WARN L193 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 1114 [2020-10-13 17:53:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:53:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:53:03,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1663 [2020-10-13 17:53:03,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:53:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:53:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:03,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:53:03,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:03,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:53:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:53:03,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:53:03,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:53:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:53:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:53:03,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 17:53:03,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:03,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:53:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:53:03,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:53:03,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:03,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:53:03,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:53:03,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:53:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:53:03,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:53:03,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:03,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:03,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:03,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:03,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:03,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:53:03,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:03,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 17:53:03,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126564124] [2020-10-13 17:53:03,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:53:03,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:53:03,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939324558] [2020-10-13 17:53:03,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:53:03,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:53:03,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:53:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:53:03,749 INFO L87 Difference]: Start difference. First operand 1163 states and 1526 transitions. Second operand 7 states. [2020-10-13 17:53:10,463 WARN L193 SmtUtils]: Spent 6.68 s on a formula simplification that was a NOOP. DAG size: 1117 [2020-10-13 17:53:19,123 WARN L193 SmtUtils]: Spent 6.33 s on a formula simplification that was a NOOP. DAG size: 1120 [2020-10-13 17:53:25,501 WARN L193 SmtUtils]: Spent 6.20 s on a formula simplification that was a NOOP. DAG size: 1117 [2020-10-13 17:54:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:54:02,145 INFO L93 Difference]: Finished difference Result 3856 states and 5099 transitions. [2020-10-13 17:54:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:54:02,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-10-13 17:54:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:54:02,172 INFO L225 Difference]: With dead ends: 3856 [2020-10-13 17:54:02,172 INFO L226 Difference]: Without dead ends: 2720 [2020-10-13 17:54:02,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:54:02,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2020-10-13 17:54:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2332. [2020-10-13 17:54:03,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-10-13 17:54:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3078 transitions. [2020-10-13 17:54:03,211 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3078 transitions. Word has length 55 [2020-10-13 17:54:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:54:03,214 INFO L479 AbstractCegarLoop]: Abstraction has 2332 states and 3078 transitions. [2020-10-13 17:54:03,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:54:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3078 transitions. [2020-10-13 17:54:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 17:54:03,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:54:03,223 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] [2020-10-13 17:54:03,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:54:03,223 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:54:03,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:54:03,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1625934174, now seen corresponding path program 1 times [2020-10-13 17:54:03,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:54:03,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950139091] [2020-10-13 17:54:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:54:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:03,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking...