/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=0.2 --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 05:04:32,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:04:32,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:04:32,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:04:32,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:04:32,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:04:32,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:04:32,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:04:32,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:04:32,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:04:32,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:04:32,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:04:32,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:04:32,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:04:32,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:04:32,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:04:32,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:04:32,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:04:32,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:04:32,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:04:32,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:04:32,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:04:32,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:04:32,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:04:32,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:04:32,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:04:32,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:04:32,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:04:32,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:04:32,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:04:32,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:04:32,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:04:32,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:04:32,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:04:32,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:04:32,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:04:32,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:04:32,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:04:32,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:04:32,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:04:32,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:04:32,708 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 05:04:32,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:04:32,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:04:32,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:04:32,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:04:32,753 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:04:32,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:04:32,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:04:32,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:04:32,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:04:32,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:04:32,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:04:32,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:04:32,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:04:32,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:04:32,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:04:32,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:04:32,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:04:32,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:04:32,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:04:32,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:04:32,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:04:32,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:04:32,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:04:32,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:04:32,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:04:32,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:04:32,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 05:04:32,759 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 05:04:33,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:04:33,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:04:33,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:04:33,262 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:04:33,263 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:04:33,264 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 05:04:33,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab946ad7/d2c6b6c38ba6405e93aa3321088cb0d5/FLAGbd92c5bee [2020-09-25 05:04:34,205 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:04:34,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 05:04:34,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab946ad7/d2c6b6c38ba6405e93aa3321088cb0d5/FLAGbd92c5bee [2020-09-25 05:04:34,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab946ad7/d2c6b6c38ba6405e93aa3321088cb0d5 [2020-09-25 05:04:34,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:04:34,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:04:34,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:04:34,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:04:34,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:04:34,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:04:34" (1/1) ... [2020-09-25 05:04:34,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15784d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:34, skipping insertion in model container [2020-09-25 05:04:34,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:04:34" (1/1) ... [2020-09-25 05:04:34,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:04:34,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:04:36,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:04:36,431 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:04:36,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:04:36,778 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:04:36,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36 WrapperNode [2020-09-25 05:04:36,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:04:36,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:04:36,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:04:36,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:04:36,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (1/1) ... [2020-09-25 05:04:36,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:04:36,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:04:36,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:04:36,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:04:36,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (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 05:04:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:04:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:04:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 05:04:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 05:04:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 05:04:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 05:04:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 05:04:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 05:04:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 05:04:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 05:04:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 05:04:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 05:04:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 05:04:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 05:04:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 05:04:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 05:04:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 05:04:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 05:04:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 05:04:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 05:04:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 05:04:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 05:04:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 05:04:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 05:04:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 05:04:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 05:04:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 05:04:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 05:04:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 05:04:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 05:04:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 05:04:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 05:04:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 05:04:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 05:04:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 05:04:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 05:04:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 05:04:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 05:04:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 05:04:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 05:04:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 05:04:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 05:04:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 05:04:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 05:04:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 05:04:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 05:04:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 05:04:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 05:04:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 05:04:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 05:04:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 05:04:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 05:04:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 05:04:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 05:04:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 05:04:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 05:04:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 05:04:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:04:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 05:04:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 05:04:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 05:04:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:04:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 05:04:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 05:04:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 05:04:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:04:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 05:04:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 05:04:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 05:04:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 05:04:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 05:04:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 05:04:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 05:04:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 05:04:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:04:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:04:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:04:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 05:04:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 05:04:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 05:04:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 05:04:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 05:04:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 05:04:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 05:04:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 05:04:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 05:04:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 05:04:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 05:04:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 05:04:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 05:04:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 05:04:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 05:04:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 05:04:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 05:04:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 05:04:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 05:04:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 05:04:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 05:04:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 05:04:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 05:04:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 05:04:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 05:04:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 05:04:37,804 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 05:04:39,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:04:39,126 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 05:04:39,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:04:39 BoogieIcfgContainer [2020-09-25 05:04:39,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:04:39,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:04:39,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:04:39,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:04:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:04:34" (1/3) ... [2020-09-25 05:04:39,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ccc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:04:39, skipping insertion in model container [2020-09-25 05:04:39,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:36" (2/3) ... [2020-09-25 05:04:39,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ccc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:04:39, skipping insertion in model container [2020-09-25 05:04:39,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:04:39" (3/3) ... [2020-09-25 05:04:39,153 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 05:04:39,164 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:04:39,177 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:04:39,197 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:04:39,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:04:39,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:04:39,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:04:39,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:04:39,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:04:39,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:04:39,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:04:39,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:04:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 05:04:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 05:04:39,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:04:39,314 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 05:04:39,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:04:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:04:39,321 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 05:04:39,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:04:39,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518313550] [2020-09-25 05:04:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:04:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:44,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:44,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:44,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 05:04:44,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:04:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-09-25 05:04:44,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:44,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:04:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 05:04:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:04:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:04:45,502 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 05:04:45,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:04:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:45,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:45,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 05:04:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 05:04:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:45,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:04:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:45,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:45,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:45,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:04:45,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:04:45,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:45,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:45,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:45,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:45,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:04:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:45,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:45,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:04:46,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:04:46,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 05:04:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:04:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 05:04:46,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:04:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:04:46,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 05:04:46,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 05:04:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:04:46,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:04:46,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:04:46,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 05:04:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:04:46,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:04:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 05:04:46,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 05:04:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:04:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 05:04:46,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:04:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:04:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:04:46,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 05:04:46,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:04:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:04:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:04:46,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 05:04:46,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:04:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:04:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 05:04:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:04:46,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:04:46,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:04:46,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:04:46,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:04:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 05:04:46,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:04:46,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:04:46,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:04:46,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:04:46,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:04:46,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:04:46,797 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 05:04:46,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518313550] [2020-09-25 05:04:46,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:04:46,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:04:46,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239951015] [2020-09-25 05:04:46,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:04:46,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:04:46,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:04:46,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:04:46,830 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-25 05:04:47,855 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 05:05:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:05:01,957 INFO L93 Difference]: Finished difference Result 4149 states and 4970 transitions. [2020-09-25 05:05:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 05:05:01,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-25 05:05:01,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:05:02,003 INFO L225 Difference]: With dead ends: 4149 [2020-09-25 05:05:02,003 INFO L226 Difference]: Without dead ends: 3104 [2020-09-25 05:05:02,017 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 05:05:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2020-09-25 05:05:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1994. [2020-09-25 05:05:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-25 05:05:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-25 05:05:02,306 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-25 05:05:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:05:02,307 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-25 05:05:02,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:05:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-25 05:05:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 05:05:02,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:05:02,316 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 05:05:02,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:05:02,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:05:02,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:05:02,318 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-25 05:05:02,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:05:02,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829533966] [2020-09-25 05:05:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:05:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:02,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:02,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:07,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:07,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 05:05:07,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:05:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 05:05:07,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:07,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:05:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 05:05:07,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:05:07,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:07,862 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 05:05:07,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:05:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 05:05:08,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 05:05:08,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:05:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:05:08,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:05:08,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:05:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:05:08,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:05:08,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 05:05:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:05:08,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 05:05:08,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:05:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:05:08,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 05:05:08,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 05:05:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:05:08,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 05:05:08,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:05:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:05:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:05:08,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 05:05:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:05:08,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:05:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 05:05:08,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:05:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 05:05:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 05:05:08,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 05:05:08,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 05:05:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:05:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 05:05:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 05:05:08,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:05:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:05:08,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:05:08,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 05:05:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:08,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:08,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:05:08,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:05:08,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:08,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:08,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:08,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:08,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:08,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:08,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:05:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:08,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:09,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:09,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:05:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 05:05:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:09,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:05:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:09,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 05:05:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:09,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:05:09,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:05:09,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:05:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:05:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:05:09,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 05:05:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:05:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:05:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:05:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:05:09,147 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 05:05:09,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829533966] [2020-09-25 05:05:09,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:05:09,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:05:09,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270155408] [2020-09-25 05:05:09,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:05:09,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:05:09,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:05:09,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:05:09,152 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 10 states. [2020-09-25 05:05:10,485 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 05:05:10,851 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 05:05:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:05:18,872 INFO L93 Difference]: Finished difference Result 4671 states and 5330 transitions. [2020-09-25 05:05:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:05:18,873 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-09-25 05:05:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:05:18,893 INFO L225 Difference]: With dead ends: 4671 [2020-09-25 05:05:18,893 INFO L226 Difference]: Without dead ends: 2828 [2020-09-25 05:05:18,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:05:18,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-09-25 05:05:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 1995. [2020-09-25 05:05:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-25 05:05:19,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-25 05:05:19,036 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 276 [2020-09-25 05:05:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:05:19,037 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-25 05:05:19,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:05:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-25 05:05:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 05:05:19,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:05:19,043 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 05:05:19,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:05:19,043 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:05:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:05:19,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-25 05:05:19,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:05:19,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009733928] [2020-09-25 05:05:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:05:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:05:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:05:21,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking...