/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:13:03,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:13:03,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:13:03,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:13:03,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:13:03,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:13:03,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:13:03,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:13:03,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:13:03,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:13:03,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:13:03,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:13:03,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:13:03,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:13:03,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:13:03,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:13:03,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:13:03,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:13:03,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:13:03,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:13:03,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:13:03,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:13:03,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:13:03,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:13:03,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:13:03,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:13:03,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:13:03,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:13:03,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:13:03,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:13:03,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:13:03,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:13:03,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:13:03,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:13:03,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:13:03,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:13:03,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:13:03,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:13:03,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:13:03,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:13:03,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:13:03,860 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 [2020-09-25 06:13:03,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:13:03,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:13:03,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:13:03,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:13:03,887 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:13:03,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:13:03,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:13:03,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:13:03,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:13:03,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:13:03,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:13:03,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:13:03,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:13:03,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:13:03,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:13:03,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:13:03,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:13:03,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:13:03,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:13:03,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:13:03,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:13:03,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:13:03,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:13:03,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:13:03,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:13:03,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:13:03,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 06:13:03,892 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 06:13:04,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:13:04,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:13:04,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:13:04,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:13:04,330 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:13:04,331 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 06:13:04,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63fd2cbb6/33dc5d258d8544d1a01c71e689345e73/FLAG6f5cbbf94 [2020-09-25 06:13:05,290 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:13:05,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 06:13:05,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63fd2cbb6/33dc5d258d8544d1a01c71e689345e73/FLAG6f5cbbf94 [2020-09-25 06:13:05,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63fd2cbb6/33dc5d258d8544d1a01c71e689345e73 [2020-09-25 06:13:05,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:13:05,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:13:05,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:13:05,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:13:05,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:13:05,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:13:05" (1/1) ... [2020-09-25 06:13:05,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4288bc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:05, skipping insertion in model container [2020-09-25 06:13:05,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:13:05" (1/1) ... [2020-09-25 06:13:05,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:13:05,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:13:07,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:13:07,348 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:13:07,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:13:07,626 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:13:07,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07 WrapperNode [2020-09-25 06:13:07,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:13:07,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:13:07,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:13:07,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:13:07,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (1/1) ... [2020-09-25 06:13:07,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:13:07,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:13:07,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:13:07,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:13:07,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (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 [2020-09-25 06:13:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:13:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:13:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 06:13:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 06:13:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 06:13:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 06:13:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 06:13:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 06:13:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 06:13:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 06:13:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 06:13:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 06:13:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 06:13:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 06:13:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 06:13:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 06:13:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 06:13:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 06:13:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 06:13:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 06:13:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 06:13:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 06:13:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 06:13:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 06:13:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 06:13:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 06:13:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 06:13:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 06:13:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 06:13:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 06:13:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 06:13:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 06:13:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 06:13:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 06:13:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 06:13:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 06:13:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 06:13:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 06:13:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 06:13:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 06:13:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 06:13:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 06:13:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 06:13:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 06:13:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 06:13:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 06:13:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 06:13:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 06:13:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 06:13:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 06:13:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 06:13:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 06:13:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 06:13:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 06:13:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 06:13:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 06:13:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 06:13:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 06:13:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 06:13:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 06:13:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 06:13:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 06:13:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 06:13:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 06:13:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 06:13:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 06:13:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 06:13:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 06:13:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:13:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 06:13:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 06:13:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 06:13:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 06:13:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:13:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 06:13:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 06:13:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 06:13:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:13:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 06:13:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 06:13:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 06:13:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 06:13:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 06:13:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 06:13:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 06:13:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 06:13:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:13:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 06:13:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 06:13:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 06:13:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 06:13:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 06:13:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 06:13:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 06:13:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:13:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:13:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:13:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 06:13:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 06:13:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 06:13:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 06:13:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 06:13:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 06:13:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 06:13:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 06:13:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 06:13:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 06:13:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 06:13:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 06:13:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 06:13:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 06:13:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 06:13:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 06:13:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 06:13:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 06:13:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:13:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 06:13:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 06:13:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 06:13:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 06:13:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 06:13:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 06:13:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 06:13:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:13:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 06:13:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:13:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 06:13:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 06:13:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 06:13:08,622 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 06:13:09,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:13:09,912 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 06:13:09,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:13:09 BoogieIcfgContainer [2020-09-25 06:13:09,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:13:09,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:13:09,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:13:09,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:13:09,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:13:05" (1/3) ... [2020-09-25 06:13:09,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724a4eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:13:09, skipping insertion in model container [2020-09-25 06:13:09,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:07" (2/3) ... [2020-09-25 06:13:09,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724a4eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:13:09, skipping insertion in model container [2020-09-25 06:13:09,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:13:09" (3/3) ... [2020-09-25 06:13:09,936 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 06:13:09,948 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:13:09,959 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:13:09,981 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:13:10,023 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:13:10,023 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:13:10,023 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:13:10,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:13:10,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:13:10,024 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:13:10,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:13:10,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:13:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 06:13:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 06:13:10,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:10,114 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:13:10,115 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:10,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:10,123 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 06:13:10,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:10,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870228190] [2020-09-25 06:13:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:14,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:15,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:15,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 06:13:15,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:13:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5125 [2020-09-25 06:13:15,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:15,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:13:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 06:13:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:13:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:13:16,396 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:13:16,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:16,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:16,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:16,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 06:13:16,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:16,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 06:13:16,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:16,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:16,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:16,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:13:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:16,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:16,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:16,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:16,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:16,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 06:13:16,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:16,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:16,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:16,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:16,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:16,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:16,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:13:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:16,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:16,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:16,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 06:13:16,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:16,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 06:13:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:16,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:16,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:16,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:13:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:13:16,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:16,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:16,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:16,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:16,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:17,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:17,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 06:13:17,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 06:13:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:17,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:13:17,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:13:17,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 06:13:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:17,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:13:17,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:13:17,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 06:13:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:13:17,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:17,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:13:17,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:13:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:13:17,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 06:13:17,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:13:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:13:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:13:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:17,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 06:13:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:17,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:17,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:17,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:17,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:13:17,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:17,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:13:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:13:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 06:13:17,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870228190] [2020-09-25 06:13:17,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:13:17,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:13:17,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732355566] [2020-09-25 06:13:17,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:13:17,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:13:17,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:13:17,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:13:17,644 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-25 06:13:18,679 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 06:13:34,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:13:34,097 INFO L93 Difference]: Finished difference Result 4149 states and 4970 transitions. [2020-09-25 06:13:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 06:13:34,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-25 06:13:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:13:34,206 INFO L225 Difference]: With dead ends: 4149 [2020-09-25 06:13:34,206 INFO L226 Difference]: Without dead ends: 3104 [2020-09-25 06:13:34,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 06:13:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2020-09-25 06:13:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1994. [2020-09-25 06:13:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-25 06:13:34,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-25 06:13:34,586 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-25 06:13:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:13:34,588 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-25 06:13:34,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:13:34,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-25 06:13:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 06:13:34,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:34,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:13:34,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:13:34,596 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:34,597 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-25 06:13:34,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:34,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995749043] [2020-09-25 06:13:34,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:35,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:39,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:39,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 06:13:39,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:13:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:13:39,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:39,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:39,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:13:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 06:13:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:13:39,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,079 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:13:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 06:13:40,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 06:13:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:13:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:40,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 06:13:40,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:13:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:40,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:13:40,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 06:13:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:13:40,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:13:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:40,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:13:40,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 06:13:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:40,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 06:13:40,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:13:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:13:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:13:40,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 06:13:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:40,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:13:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:13:40,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:13:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 06:13:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:40,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:40,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:13:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 06:13:40,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:40,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 06:13:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:40,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:13:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:13:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 06:13:41,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:41,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:41,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:13:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:41,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:41,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:13:41,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:13:41,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:41,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:13:41,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 06:13:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:41,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 06:13:41,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:41,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:13:41,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:41,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:41,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:13:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:41,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:41,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:41,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 06:13:41,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:41,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:41,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:41,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:13:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 06:13:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:41,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:41,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:41,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:13:41,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:41,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:13:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 06:13:41,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995749043] [2020-09-25 06:13:41,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:13:41,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:13:41,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436606177] [2020-09-25 06:13:41,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:13:41,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:13:41,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:13:41,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:13:41,418 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 10 states. [2020-09-25 06:13:42,864 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 06:13:43,231 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 06:13:51,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:13:51,715 INFO L93 Difference]: Finished difference Result 4671 states and 5330 transitions. [2020-09-25 06:13:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:13:51,716 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-09-25 06:13:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:13:51,733 INFO L225 Difference]: With dead ends: 4671 [2020-09-25 06:13:51,733 INFO L226 Difference]: Without dead ends: 2828 [2020-09-25 06:13:51,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:13:51,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-09-25 06:13:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 1995. [2020-09-25 06:13:51,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-25 06:13:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-25 06:13:51,895 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 276 [2020-09-25 06:13:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:13:51,896 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-25 06:13:51,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:13:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-25 06:13:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 06:13:51,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:51,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:13:51,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:13:51,902 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-25 06:13:51,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:51,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807158382] [2020-09-25 06:13:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:52,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:52,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking...