/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=0.8 --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 08:31:10,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:31:10,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:31:10,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:31:10,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:31:10,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:31:10,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:31:10,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:31:10,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:31:10,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:31:10,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:31:10,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:31:10,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:31:10,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:31:10,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:31:10,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:31:10,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:31:10,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:31:10,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:31:10,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:31:10,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:31:10,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:31:10,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:31:10,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:31:10,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:31:10,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:31:10,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:31:10,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:31:10,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:31:10,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:31:10,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:31:10,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:31:10,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:31:10,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:31:10,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:31:10,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:31:10,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:31:10,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:31:10,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:31:10,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:31:10,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:31:10,683 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 08:31:10,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:31:10,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:31:10,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:31:10,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:31:10,727 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:31:10,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:31:10,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:31:10,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:31:10,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:31:10,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:31:10,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:31:10,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:31:10,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:31:10,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:31:10,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:31:10,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:31:10,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:31:10,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:31:10,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:31:10,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:31:10,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:31:10,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:31:10,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:31:10,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:31:10,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:31:10,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:31:10,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 08:31:10,735 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 08:31:11,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:31:11,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:31:11,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:31:11,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:31:11,213 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:31:11,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 08:31:11,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb6ce9d7/c0b3e8bf5ee04cc39b6ffce23364fd4e/FLAG9bddc80e9 [2020-09-25 08:31:12,122 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:31:12,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 08:31:12,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb6ce9d7/c0b3e8bf5ee04cc39b6ffce23364fd4e/FLAG9bddc80e9 [2020-09-25 08:31:12,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb6ce9d7/c0b3e8bf5ee04cc39b6ffce23364fd4e [2020-09-25 08:31:12,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:31:12,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:31:12,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:31:12,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:31:12,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:31:12,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:31:12" (1/1) ... [2020-09-25 08:31:12,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0cc214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:12, skipping insertion in model container [2020-09-25 08:31:12,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:31:12" (1/1) ... [2020-09-25 08:31:12,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:31:12,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:31:14,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:31:14,370 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:31:14,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:31:14,765 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:31:14,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14 WrapperNode [2020-09-25 08:31:14,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:31:14,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:31:14,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:31:14,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:31:14,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:14,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:14,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:14,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:14,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:14,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:15,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... [2020-09-25 08:31:15,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:31:15,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:31:15,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:31:15,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:31:15,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:31:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:31:15,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:31:15,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 08:31:15,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 08:31:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 08:31:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 08:31:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 08:31:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 08:31:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 08:31:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 08:31:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 08:31:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 08:31:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 08:31:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 08:31:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 08:31:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 08:31:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 08:31:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 08:31:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 08:31:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 08:31:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 08:31:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 08:31:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 08:31:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 08:31:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 08:31:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 08:31:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 08:31:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 08:31:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 08:31:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 08:31:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 08:31:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 08:31:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 08:31:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 08:31:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 08:31:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 08:31:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 08:31:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 08:31:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 08:31:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:31:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 08:31:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 08:31:15,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 08:31:15,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 08:31:15,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 08:31:15,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 08:31:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 08:31:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 08:31:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 08:31:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 08:31:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 08:31:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 08:31:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 08:31:15,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 08:31:15,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 08:31:15,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 08:31:15,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 08:31:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 08:31:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 08:31:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 08:31:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 08:31:15,173 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 08:31:15,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 08:31:15,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 08:31:15,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 08:31:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 08:31:15,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 08:31:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 08:31:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 08:31:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 08:31:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 08:31:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 08:31:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 08:31:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 08:31:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 08:31:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 08:31:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 08:31:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 08:31:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:31:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 08:31:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 08:31:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 08:31:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 08:31:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:31:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 08:31:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 08:31:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 08:31:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:31:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 08:31:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 08:31:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 08:31:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 08:31:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 08:31:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 08:31:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 08:31:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 08:31:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:31:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 08:31:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 08:31:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 08:31:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:31:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 08:31:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 08:31:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 08:31:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 08:31:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 08:31:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 08:31:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 08:31:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 08:31:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:31:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:31:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:31:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 08:31:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 08:31:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 08:31:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 08:31:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 08:31:15,205 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 08:31:15,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 08:31:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 08:31:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 08:31:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 08:31:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 08:31:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 08:31:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 08:31:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 08:31:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 08:31:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 08:31:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 08:31:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 08:31:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:31:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:31:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 08:31:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:31:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 08:31:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 08:31:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 08:31:15,999 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 08:31:17,383 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:31:17,383 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 08:31:17,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:31:17 BoogieIcfgContainer [2020-09-25 08:31:17,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:31:17,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:31:17,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:31:17,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:31:17,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:31:12" (1/3) ... [2020-09-25 08:31:17,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559266fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:31:17, skipping insertion in model container [2020-09-25 08:31:17,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:14" (2/3) ... [2020-09-25 08:31:17,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559266fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:31:17, skipping insertion in model container [2020-09-25 08:31:17,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:31:17" (3/3) ... [2020-09-25 08:31:17,406 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 08:31:17,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:31:17,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:31:17,451 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:31:17,488 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:31:17,488 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:31:17,488 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:31:17,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:31:17,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:31:17,489 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:31:17,489 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:31:17,489 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:31:17,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 08:31:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 08:31:17,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:17,555 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 08:31:17,556 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:17,564 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 08:31:17,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:17,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190284465] [2020-09-25 08:31:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:19,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:22,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:23,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:23,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 08:31:23,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:31:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 08:31:23,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:23,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 08:31:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:31:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:31:23,841 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 08:31:23,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:23,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 08:31:24,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 08:31:24,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:31:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:24,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:31:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:31:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:24,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:31:24,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:31:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:31:24,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 08:31:24,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:31:24,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:31:24,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 08:31:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:24,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:24,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 08:31:24,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 08:31:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 08:31:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 08:31:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:31:24,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:31:24,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:31:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:24,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:24,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:31:24,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:24,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 08:31:24,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:24,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:24,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:24,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:24,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:24,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:24,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:31:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:24,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:25,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:25,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:31:25,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:31:25,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:25,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 08:31:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:25,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:25,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:25,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:25,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:25,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:31:25,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:25,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:31:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:25,163 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 08:31:25,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190284465] [2020-09-25 08:31:25,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:25,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:31:25,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365243760] [2020-09-25 08:31:25,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:31:25,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:25,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:31:25,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:31:25,201 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-25 08:31:26,358 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 08:31:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:41,870 INFO L93 Difference]: Finished difference Result 4149 states and 4970 transitions. [2020-09-25 08:31:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 08:31:41,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-25 08:31:41,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:41,943 INFO L225 Difference]: With dead ends: 4149 [2020-09-25 08:31:41,944 INFO L226 Difference]: Without dead ends: 3104 [2020-09-25 08:31:41,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 08:31:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2020-09-25 08:31:42,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1994. [2020-09-25 08:31:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-25 08:31:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-25 08:31:42,344 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-25 08:31:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:42,346 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-25 08:31:42,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:31:42,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-25 08:31:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 08:31:42,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:42,361 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 08:31:42,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:31:42,362 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:42,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:42,363 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-25 08:31:42,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:42,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128925140] [2020-09-25 08:31:42,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:44,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:47,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:47,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 08:31:47,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:31:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 08:31:47,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:47,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:47,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:31:47,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 08:31:47,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 08:31:47,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:48,107 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 08:31:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 08:31:48,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 08:31:48,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:48,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:31:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:48,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:48,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:31:48,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:31:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:48,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:48,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 08:31:48,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:31:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:31:48,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:31:48,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:31:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:48,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:31:48,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:31:48,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:48,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:48,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 08:31:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:48,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:48,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 08:31:48,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:48,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:31:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:31:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:31:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:48,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 08:31:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:49,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 08:31:49,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:31:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:31:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:31:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:49,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 08:31:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 08:31:49,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 08:31:49,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 08:31:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:31:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:31:49,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 08:31:49,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:49,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:31:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:49,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 08:31:49,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 08:31:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:31:49,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 08:31:49,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:49,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:49,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:31:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:49,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 08:31:49,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 08:31:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:49,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:49,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 08:31:49,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:31:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:31:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-25 08:31:49,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128925140] [2020-09-25 08:31:49,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:49,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 08:31:49,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170016851] [2020-09-25 08:31:49,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 08:31:49,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:49,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 08:31:49,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:31:49,979 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 14 states. [2020-09-25 08:31:50,667 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 08:31:51,490 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-25 08:31:51,870 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 08:31:57,683 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-09-25 08:31:58,072 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 08:31:58,471 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-25 08:31:58,865 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 08:32:03,613 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 215